Community
Tridente D’Oro: Underwater Tradition and Innovation
This month, the Academy will honor underwater explorers, educators, and technologists with its prestigious Golden Trident award. Named for the coveted weapon of the Fisher King in the legend of King Arthur, the Golden Trident awards those who have made significant contributions to the underwater world. Here, we explore the award’s legacy, first through Andrea Murdock Alpini’s dive into its history, then through an interview with the academy president Paolo Ferraro by InDEPTH chief and past recipient of the award, Michael Menduno.
by Andrea Murdock Alpini. Translation Vicenza “Mozzo” Croce. Images courtesy of Accademia Internazionale Di Scienze E Tecniche Subacquee

See accompanying story (below): A Few Words With Academy President Paolo Ferraro by Michael Menduno.
Ecco la storia in Italiano: TRIDENTE D’ORO: TRADIZIONE E INNOVAZIONE DELLA SUBACQUEA

The Mediterranean Sea is a cradle of Western civilization, and Italy and France are caches of diving history.
In the 1950s, Europe was recovering from World War II; the economy was growing, and the population was beginning to frequent the coasts for recreational purposes—not only the beach, but also for underwater fishing.
Men armed with underwater rifles went deeper and deeper—first in apnea and then with diving cylinders—to harvest fish, corals, sponges, and amphorae, as well as to search for remains of wrecks.
The military technologies used during the war were simplified and transformed into commonly used objects to be placed on the emerging underwater market.
In France, Marseille was a hotbed of revolutionary diving techniques, thanks to the presence of Commander Jacques-Yves Cousteau and his ship Calypso. In Genoa, Italy, innovators developed ideas and equipment, and the divers of tomorrow were forged—first fishermen and then creators of educational schools. Luigi Ferraro, Duilio Marcante, and Egidio Cressi were the pioneers who would revolutionize diving.
In France, in 1959, The World Confederation of Sport Fishing (CIPS) gave birth to the first World Confederation of Underwater Activities (CMAS). The underwater branch was formed in order to extend CIPS’s depth expertise.
The first President of CMAS was the bonnet rougecommandant J.Y. Cousteau. He was flanked by the first Vice President and President of the Sports Committee—Commander Luigi Ferraro, a war hero remembered both for the December, 1941 raid on the port of Alexandria, Egypt that damaged two British battleships and for founding the underwater equipment company Technisub. The company sponsored the first Italian expedition on the wreck Andrea Doria, captained by two future Golden Trident honorees—director Bruno Vailati in 1967 and, in 1968, writer/explorer Stefano Carletti, author of the famous book Andrea Doria-74.

The Tridente d’Oro aka Golden Trident
In 1960, the International Underwater Exhibition was born from the best Italian cultural minds—a place to bring photographers, cameramen, dive companies, divers, record-makers and breakers, champions, writers, doctors, and designers together.
The Festival ended with the presentation of the coveted Tridente d’Oro, aka the Golden Trident Award, a recognition honoring outstanding personalities in national and international diving.
Five categories were established:
I) Scientific activities
II) Underwater sports and exploration
III) Hyperbaric techniques, technologies and activities
IV) Educational and artistic activities
V) Organizations, associations and companies
The Golden Trident Award is linked to the sea as well as to the Sicilian island of Ustica and soon acquired fame as “the “Nobel Prize for diving,” in industry parlance. The award is inextricably linked to the small Sicilian island, as award creator Lucio Messina intended.
All winners of the coveted prize became honorary citizens of the island, and all the award ceremonies took place on the island until the International Underwater Exhibition became a traveling event in 2008. In 2009/10, it was held in Anzio on the coast near Rome; from 2011 to 2013, it returned to Genoa; and, the following year, 2014, the ceremony was held at the Alma Mater Studiorum Universita di Bologna, the year that DAN Europe founder Dr. Marroni was awarded.
In 2015, the Golden Trident returned to Sicily at the prestigious headquarters of the Regio Arsenale in Palermo, and since 2016, the award ceremony has taken place during the EUDI SHOW—an annual international diving fair in Bologna.
Each honoree acquires the title of Academician and becomes part of the prestigious International Academy of Underwater Sciences and Techniques (AIST). AIST is internationally recognized by UNESCO’s Réseau des Academies Méditerranéens and serves on the advisory board of Cognitive Robots for Cooperation with Divers in Marine Environments, a research project funded by the European Commission.
Award Recipients Since Inception

The organization has honored over two hundred winners since the award’s inception in 1960.
Among them are some notable international names such as visionary Walt Disney (1960), pioneer Austrian photographer and documentary filmmaker Hans Hass (1960), French founder of CMAS Jacques Dumas (1968), and American oceanographer Sylvia Earle (2017).
There are many Italian names that should be remembered—“the myths and legends,” in the words of Fabio Ruberti, founder of IANTD Italy, Academician, and current Vice President. Among them are “J. Y. Cousteau (1961), Luigi Ferraro (1962), Enzo Enzo Maiorca (1964), Albert Falco (1964), Jacques Mayol (1971), George Bass (1964), Peter Throckmorton (1964), Honor Frost (1985), Sebastiano Tusa (2004), and Ehud Galili (2005).”

Not to be forgotten are Folco Quilici (1960), Gianni Roghi (1960), and Duilio Marcante (1963). Other honorees include Faustolo Rambelli (2000), founder of the Historical Diving Society, Italy; underwater writer and researcher Andrea Ghisotti (2003; apnea champion Andrea Pellizzari (2011); Giorgio Caramanna (2018), a current member of the Board of Directors; and current Director of the Academy, Edoardo Pavia (2017), underwater explorer.
Other renowned underwater explorers who have received the Golden Trident include American Ronald Benjamin Linsky (1971); American cave expert Jim Bowden and Swiss Oliver Isler, both awarded in the same year (2011); Italian speleologist Luigi Casati (2018); and researcher and deep sea explorer Guide Guy (1985), who (with other crew members) discovered the wreck of the Battleship Rome.
Notable Explorers
Icon of the modern American explorer/diver, founder of Global Underwater Explorers (GUE) Jarrod Jablonski received the Golden Trident in 2015. When asked to explain what exploration meant, he responded,
For me, the core impulse in human evolution has been our insatiable curiosity and desire to explore the world in which we live, and I have always been an insanely curious personality. Discovering scuba was a life-changing experience, allowing me access to an entirely new world filled with unique adventures. This is especially true when I’m exploring new caves or finding new wrecks, for this is where I feel a unique connection to our history as humans on this ancient planet. Perhaps the most spiritual experiences of my life have taken place thousands of kilometers into a cave while exploring a place where no human heart has ever beat. In those moments, I feel a sense of connection and fulfillment that no words can properly describe.
In 2021, Michele Geraci—an Italian scuba record-breaker and the manager of Italy’s Olympic sports in the apnea sector—received the Tridente d’Oro and said,
My contribution—together with that of some peers—was important to convey to the IOC (International Olympic Committee) that we are working safely, despite the great depths reached. This is the beginning of the Olympic Dream for Freediving.
The award recognized his “development of an intense athletic, educational, and professional activity,” his “worldwide safety work,” and his “status as an industry resource.”
The coveted statuette is a link between pioneers such as Duilio Marcante and contemporary diving innovators.


Medical Innovators
Doctors committing their expertise to decompression theory have also been honored, a recognition of their instrumental role in increasing underwater activity globally.
The first physicians to be awarded the Prize were Swiss Hannes Keller and the French Jacques Piccard (1961), followed the next year by Italian Roberto Galeazzi, inventor of, among other technologies, mobile hyperbaric chambers (1962). Albert Buhlmann, whose name needs no introduction, was recognized as an Academician in 1991.
In 2009, Pasquale Longobardi—the outgoing President of the Academy—was honored. He recently spoke about the prize and its relationship with underwater medicine:
Underwater medicine is currently undergoing revolution. The old concept of a bubble that obstructs the flow of blood is outdated. As a result, decompression software based on the reduced bubble gradient model (RBGM) needs to be re-evaluated. In fact, each diver responds uniquely to decompressive stress. Accordingly, medical research is currently focused on the measurement of inflammation markers. At the moment, the models that are preferred allow the shortest possible decompression with gradient factors set based on the specific characteristics of individual divers. The Academy is the lighthouse that illuminates the path of young researchers.
In 2013, the Golden Trident was awarded to hyperbaric doctor Giorgio Odaglia, inventor of the famous Marcante Odaglia maneuver, the Italian version of the Frenzel equalization technique.
In 2014, Dr. Alessandro Marroni received the award, describing his work as follows:
Well, in just a few words, it’s the core of my professional life and what I’ve dedicated myself to since beginning my career 51 year ago. To be honest, this is not limited only to decompression studies, but to the entire domain of underwater human physiology and pathophysiology, and the mechanisms of human adaptation to the underwater environment. Decompression is just one of the many challenges that humans face when immersing under water, either with breath-hold or underwater breathing techniques. Current studies are demonstrating more and more that even our response to decompression may be conditioned by other contributing individual and environmental factors accompanying simple decompression, and the related on-gassing and off-gassing phenomena driven by the laws of gas physics.
The Future of the Academy
In 2011, Paolo Ferraro—an underwater industry entrepreneur—received the Golden Trident; eleven years later, he became President of the International Academy of Underwater Sciences and Techniques.

In the same year, Fabio Ruberti, current Vice President of Operations, received the award; he explained his vision for the future of the Academy:
As its full name indicates, the Academy has had an international presence since its very inception—suffice it to mention the names of some famous first members, such as Cousteau, Hass, Picard, Throckmorton, and many others with the same high profile in diving. Now, the new Board’s task is to identify and select new members internationally who are of the same level and excellence as their predecessors in the various fields of diving. Another equally important task will be to spread the knowledge of the Academy among the international diving public and those who are passionate about underwater research and exploration. Articles like this one in specialized publications that promote knowledge of the underwater world, help meet our goals for widespread information-sharing.
The future of the underwater world is yet to be written—techniques, technologies, adaptability, innovation, tradition, and (above all), the methods for sharing the passion that animated the pioneers. The new Academicians will have to set an example for future generations, growing, spreading, and strengthening the underwater community.
A Few Words with Academy President Paolo Ferraro
by Michael Menduno

Paolo Ferraro received a Golden Trident award a few years after he retired as the president of Technisub, where he had served for 25 years. His father Luigi, who was a pioneer of Italian submarine warfare, most notable for his service with the commando frogman unit Decima Flottiglia MAS. After the war, Ferraro went to work as technical director for Cressi Sub, where he invented the Pinocchio mask, the first mask with a rubber nose piece to aid in equalization, in 1952, and the Rondinella fin—the first fins with a foot pocket. He then left Cressi after 16 years to form Technisub and served as its president until 1982, when Paolo took over. Earlier this year, InDEPTH chief Michael Menduno, a past recipient of the award, met up with Ferraro to talk about the Academy and legacy of the Golden Trident.

Michael Menduno: Paolo, I was hugely honored to receive a Golden Trident award last year! Thank you so much!
Paolo Ferraro: Thank you. After evaluating your CV, the Board of the Academy considered you deserving to receive this recognition in the Educational, Outreach, Artistic and Recreational category.

Grazie! I understand that the Academy will be honoring several new Golden Trident inductees this month at the first underwater exhibition held in Trieste, Italy. British caver Sir Rick Stanton will be receiving an award. Rick was, of course, instrumental in the Thai cave rescue and featured in Ron Howard’s recent movie, Thirteen Lives,” The other is JP Imbert, a French decompression engineer that has worked both with the commercial industry as well as with tech divers. In fact, he owned the IANTD France franchise back in the day. Both of them have contributed so much.
Please talk to me about your selection process—how do you identify your Golden Trident candidates.
We invite the existing Academicians, the Golden Tridents awardees, to identify people that they think deserve the Golden Trident. However, sometimes a worthy individual just becomes evident. For example, we have a long-held dream to confer a Trident on James Cameron. He has done much to make the diving world known to the public.
He’s on your list?
Yes, him and others. Once we have a range of candidates, the Board of Directors meet and consider the candidates’ lives and accomplishments. The challenge is not to concentrate on a single field of endeavor. As you know, the Academy focuses on scientific, technical, artistic, cultural, educational and sporting areas. So, when the Board of Directors meets to select the people, we try to have a balanced mix of the different sciences. We also acknowledge and make awards to deserving organizations.
Thank you for explaining that Paolo. I understand that you received your Golden Trident 2011 and have been involved in the Academy ever since, and last year you were elected President of the Academy.
Paolo Ferraro: Correct. In 2011, the Academy was in a very difficult position. There were few people involved, though there was money and an organization, and I was just leaving my business. I had been president of a diving company for 26 years, so I had some experience in managing a business. And I told them, “I will try to help you.” They told me, “Go ahead, we trust you.” And so, I tried to organize the academy. The first task was to find money. That’s the main problem of this organization because it survives on the annual membership fees.
That’s the Academy’s primary source of income?
At the present time, yes, that’s the main income. However, we also receive funding from individuals, companies, and sometimes from governmental organizations. It depends. It’s difficult, because public organizations don’t have many resources at the current time. Things are also tight in the private sector right now, though we have received some money from diving contractors, but there’s a lot of competition for funds. I have tried to help the Academy grow over the last 10 years and to organize it in a professional way and will continue to do so.
I understand that the Academy usually holds its award ceremonies in conjunction with the annual European Dive Show (EUDI) dive show in Bologna Italy.
Yes. Unfortunately, as you know, we had to postpone the awards at EUDI last year due to Covid and held the awards online instead. Interestingly, instead of having 500 people at the hall in Bologna we had 5000 attend our ZOOM awards. So, it was a very good result.
It was amazing! Will you be holding virtual and or hybrid award ceremonies like that in the future?
Yes, we hope to. The Internet enables us to reach a much wider international audience and that’s what we are striving to do. This Fall, of course, we decided to present awards at the Trieste exhibition, because we were unsure what would happen at EUDI in early 2022. Trieste is a good venue for us. The soul of the Academy is science and techniques and Trieste is the European city with the highest number of researchers per capita and with one of the largest concentrations of scientific institutions in Italy. The authorities there are interested and sensitive to our mission. However, we do plan to return to EUDI next year and present awards. It’s one of the major diving exhibitions in Europe.

I see that your Tridents will be giving a number of talks on underwater archeology, oceanography and climate change at the upcoming Trieste show, similar to what the Academy usually does at the EUDI show.
Yes. At the last EUDI show (2022) we organized five seminars by five Golden Tridents. They are all now on the Academy website. The site is bilingual in Italian and English. We will be doing something similar with the Trieste talks.
That’s great! And having the site in English and Italian should make it easier for more people to access
It’s absolutely necessary for us because we have many Golden Tridents in both France and the UK. We are thinking of organizing a kind of subsidiary Academy in France and the UK, because in France we have some 30 Golden Tridents and as many as eight or 10 in the UK. We may even do something in the US in the future to boost awareness there.
What other activities outside of granting awards and organizing talks has the Academy been involved in?
Ha. We got in a fight and we lost. Do you remember when there was the partial sinking of the Costa Concordia about a decade ago near the island of Giglio in Italy. There was a huge operation to recover the wreck. In order to lift it to the surface, the authorities built six giant platforms the size of a football fields. The plan was to put the wreck on a platform and tow it to a demolition site in Genoa. We said, “Please leave the platforms on the seabed; don’t destroy them. They would make an excellent diving site.”

I contacted the Mayor of the island of Giglio and he was enthusiastic. However, the Ministry said that everything had to be removed from the seabed. We tried and we failed. Now we are looking for ships that can be scuttled and made available for diving. Italy has 6000 km of coastline. Some parts are excellent for diving; there are wrecks, coral, and beautiful diving. But other parts have little to offer; it’s just sand, mud—not interesting.
So The Academy wants to create artificial shipwreck reefs.
Yes, exactly. The Italian Navy, for instance, currently has 28 ships that are out of service. We say, okay, why not sink them? It would create new diving sites and business and have a positive biological effect, by bringing life back to the ship. However, here in Europe it’s a political issue. The concern is potential toxic materials leaking into the environment. But we can clean the wrecks, remove any chemicals, and then sink them and create a benefit for the local economy. So the academy is engaged in this operation. The European bureaucracy has some fixed ideas and is slow to change, but we haven’t lost hope that we will succeed.
It’s a worthy cause that could benefit local economies, the diving community and the environment. It seems like a win-win all the way around.
Absolutely. You know, close to Genoa we have the main Mediterranean wreck, the Haven. It’s the largest wreck in the Mediterranean, an oil tanker. There are at least 10 diving centers that take divers to this wreck. They work all year around and they receive people from Germany, Scandinavia, UK, all over Europe. Because really, it’s not easy to make dives on a giant wreck like that one, though it’s excellent and beautiful. We want to create other opportunities in the Adriatic Sea, for instance.
We ran a story earlier this year on the MT Haven by one of our Belgium writers, Kurt Storms. Very interesting.
You were just elected president of the Academy. You have a new board of directors including IANTD Italy franchise owner Fabio Ruberti, and Italian explorer Edoardo Pavia. I understand that you and your new team want to take the Academy in a new direction.
Yes, in spite of the fact that we have made 250 Golden Tridents in our history, the existing Tridents number no more than 100 because many Tridents of the past have passed away. So, the Academy is gradually becoming smaller and smaller, because the new awardees are not enough to replace those leaving. Our idea is to open the Academy to a wider range of important people in the diving community. Up until now, to belong to the Academy, you had to have received a Golden Trident. Instead, we want to open the Academy to the best doctors, the best biologists, the best archaeologists, the best educators etc. We have talked about creating a committee of experts to identify the best people, and then invite them to join the Academy. Our target is to have an Academy, not of 50-100 people, but rather 200 or maybe 300 people. Not everyone, but the best. Then once a year, we will select people from the academicians to receive the Golden Trident.
It sounds a little like the Explorer Club model. Good luck to you in that. One last question before we go. What would you like our readers to know about the Academy and the Golden Trident?
We are proud to carry on a tradition more than sixty years old. It is a great responsibility and we try to do our best.
Thank you Paolo!
Past recipients:
UNDERWATER VISIONARIES:
1960 WALT DISNEY – USA
1960 HANS HASS – AUSTRiA – VIDEO/PHOTO SCUBA PIONEER
1968 JACQUES DUMAS – FRANCE – FOUNDER OF CMAS
2017 SYLVIA EARLE – USA
ITALY’S TOP NAMES
1960 FOLCO QUILICI
1960 GIANNI ROGHI
1962 LUIGI FERRARO
1963 DUILIO MARCANTE
1964 ENZO MAIORCA
1967 BRUNO VAILATI (FILMAKER ANDREA DORIA -74)
1968 STEFANO CARLETTI (book’s author ANDREA DORIA -74)
2000 FAUSTOLO RAMBELLI (founder of Historical Diving Society Italy)
2003 ANDREA GHISOTTI (scuba reporter)
2011 PAOLO FERRARO Academy President, the son of Luigi Ferraro
2011 ANDREA PELLIZZARI – FREE DIVING RECORD
2017 EDOARDO PAVIA – MEMBER OF BOARD ACADEMY
2018 CARAMANNA GIORGIO – MEMBER OF BOARD ACADEMY
2021 FABIO RUBERTI – MEMBER OF BOARD ACADEMY
UNDERWATER EXPLORERS
1961 J. Y. COUSTEAU – France
1971 RONALD BENJAMIN LINSKY – USA
1971 JACQUES MAYOL – FRANCE
1985 GUIDO GUY – ITALY
2004 SEBASTIANO TUSA – ITALY
2011 OLIVIER ISLER – SWITZERLAND
2011 JIM BOWDEN – USA
2015 JARROD JABLONSKI – USA
2018 LUIGI CASATI – ITALY
MEDICINE and DECOMPRESSION
1961 HANNES KELLER – SWITZERLAND
1961 JACQUES PICCARD – SWITZERLAND
1962 ROBERTO GALEAZZI – ITALY
1991 ALBERT BUHLMANN – SWITZERLAND
2009 PASQUALE LONGOBARDI – ITALY
2013 GIORGIO ODAGLIA – ITALY
2014 ALESSANDRO MARRONI – ITALY
This month we’re launching a survey panel on dive computing. Please help us by sharing your thoughts & practice at: Dive Computers-Exploratory Survey.
Dive Deeper
Website: INTERNATIONAL ACADEMY OF UNDERWATER SCIENCES AND TECHNIQUES
Facebook: (video) Award Ceremony

Andrea Murdock Alpini is a TDI and PSAI technical trimix and advanced wreck-overhead instructor based in Italy. He is fascinated by deep wrecks, historical research, decompression studies, caves, filming, and writing. He holds a Master’s degree in Architecture and an MBA in Economics for The Arts. Andrea is also the founder of PHY Diving Equipment. His life revolves around teaching open circuit scuba diving, conducting expeditions, developing gear, and writing essays about his philosophy of wreck and cave diving. He published his first book, Deep Blue: storie di relitti e luoghi insoliti (2018) and IMMERSIONI SELVAGGE, the new one is on the way, out on fall 2022.

Michael Menduno/M2 is InDepth’s editor-in-chief and an award-winning journalist and technologist who has written about diving and diving technology for more than 30 years. He coined the term “technical diving.” His magazine “aquaCORPS: The Journal for Technical Diving” (1990-1996) helped usher tech diving into mainstream sports diving, and he produced the first tek.Conferences and Rebreather Forums 1.0 & 2.0. In addition to InDepth, Menduno serves as an editor/reporter for DAN Europe’s Alert Diver magazine, a contributing editor for X-Ray mag, and writes for DeeperBlue.com. He is on the board of the Historical Diving Society (USA), and a member of the Rebreather Training Council.
Community
Twenty-five Years in the Pursuit of Excellence – The Evolution and Future of GUE
Founder and president Jarrod Jablonski describes his more than a quarter of a century long quest to promote excellence in technical diving.

by Jarrod Jablonski. Images courtesy of J. Jablonski and GUE unless noted.
The most difficult challenges we confront in our lives are the most formative and are instrumental in shaping the person we become. When I founded Global Underwater Explorers (GUE), the younger version of myself could not have foreseen all the challenges I would face, but equally true is that he would not have known the joy, the cherished relationships, the sense of purpose, the rich adventures, the humbling expressions of appreciation from those impacted, or the satisfaction of seeing the organization evolve and reshape our industry. Many kindred souls and extraordinary events have shaped these last 25 years, and an annotated chronology of GUE is included in this issue of InDEPTH. This timeline, however, will fail to capture the heart behind the creation of GUE, it will miss the passionate determination currently directing GUE, or the committed dedication ready to guide the next 25 years.

I don’t remember a time that I was not in, around, and under the water. Having learned to swim before I could walk, my mother helped infuse a deep connection to the aquatic world. I was scuba certified in South Florida with my father, and promptly took all our gear to North Florida where I became a dive instructor at the University of Florida. It was then that I began my infatuation with cave diving. I was in the perfect place for it, and my insatiable curiosity was multiplied while exploring new environments. I found myself with a strong desire to visit unique and hard-to-reach places, be they far inside a cave or deep within the ocean.
My enthusiasm for learning was pressed into service as an educator, and I became enamored with sharing these special environments. Along with this desire to share the beauty and uniqueness of underwater caves was a focused wish to assist people in acquiring the skills I could see they needed to support their personal diving goals. It could be said that these early experiences were the seeds that would germinate, grow, mature, and bloom into the organizing principles for GUE.



The Pre-GUE Years
Before jumping into the formational days of GUE, allow me to help you visualize the environment that was the incubator for the idea that became GUE’s reality. By the mid-1990s, I was deeply involved in a variety of exploration activities and had been striving to refine my own teaching capacity alongside this growing obsession for exploratory diving. While teaching my open water students, I was in the habit of practicing to refine my own trim and buoyancy, noticing that the students quickly progressed and were mostly able to copy my position in the water. Rather than jump immediately into the skills that were prescribed, I started to take more time to refine their comfort and general competency. This subtle shift made a world of difference in the training outcomes, creating impressive divers with only slightly more time and a shift in focus. In fact, the local dive boats would often stare in disbelief when told these divers were freshly certified, saying they looked better than most open water instructors!
By this point in my career, I could see the problems I was confronting were more systemic and less individualistic. In retrospect, it seemed obvious that key principles had been missing in both my recreational and technical education, not to mention the instructor training I received. The lack of basic skill refinement seemed to occur at all levels of training, from the beginner to the advanced diver. Core skills like buoyancy or in-water control were mainly left for divers to figure out on their own and almost nobody had a meaningful emphasis on efficient movement in the water. It was nearly unheard of to fail people in scuba diving, and even delaying certification for people with weak skills was very unusual. This remains all too common to this day, but I believe GUE has shifted the focus in important ways, encouraging people to think of certification more as a process and less as a right granted to them because they paid for training.

The weakness in skill refinement during dive training was further amplified by little-to-no training in how to handle problems when they developed while diving, as they always do. In those days, even technical/cave training had very little in the way of realistic training in problem resolution. The rare practice of failures was deeply disconnected from reality. For example, there was almost no realistic scenario training for things like a failed regulator or light. What little practice there was wasn’t integrated into the actual dive and seemed largely useless in preparing for real problems. I began testing some of my students with mock equipment failures, and I was shocked at how poorly even the best students performed. They were able to quickly develop the needed skills, but seeing how badly most handled their first attempts left me troubled about the response of most certified divers should they experience problems while diving, as they inevitably would.
Diving Fatalities
Meanwhile, I was surrounded by a continual progression of diving fatalities, and most appeared entirely preventable. The loss of dear friends and close associates had a deep impact on my view of dive training and especially on the procedures being emphasized at that time within the community. The industry, in those early days, was wholly focused on deep air and solo diving. However, alarmingly lacking were clear bottle marking or gas switching protocols. It seemed to me to be no coincidence that diver after diver lost their lives simply because they breathed the wrong bottle at depth. Many others died mysteriously during solo dives or while deep diving with air.
One of the more impactful fatalities was Bob McGuire, who was a drill sergeant, friend, and occasional dive buddy. He was normally very careful and focused. One day a small problem with one regulator caused him to switch regulators before getting in the water. He was using a system that used color-coded regulators to identify the gas breathed. When switching the broken regulator, he either did not remember or did not have an appropriately colored regulator. This small mistake cost him his life. I clearly remember turning that one around in my head quite a bit. Something that trivial should not result in the loss of a life.
Also disturbing was the double fatality of good friends, Chris and Chrissy Rouse, who lost their lives while diving a German U-boat in 70 m/230 ft of water off the coast of New Jersey. I remember, as if the conversation with Chris were yesterday, asking him not to use air and even offering to support the cost as a counter to his argument about the cost of helium. And the tragedies continued: The loss of one of my closest friends Sherwood Schille, the death of my friend Steve Berman who lived next to me and with whom I had dived hundreds of times, the shock of losing pioneering explorer Sheck Exley, the regular stream of tech divers, and the half dozen body recoveries I made over only a couple years, which not only saddened me greatly, but also made me angry. Clearly, a radically different approach was needed.
Learning to Explore
Meanwhile, my own exploration activities were expanding rapidly. Our teams were seeking every opportunity to grow their capability while reducing unnecessary risk. To that end, we ceased deep air diving and instituted a series of common protocols with standardized equipment configurations, both of which showed great promise in expanding safety, efficiency, and comfort. We got a lot of things wrong and experienced enough near misses to keep us sharp and in search of continual improvement.

But we looked carefully at every aspect of our diving, seeking ways to advance safety, efficiency, and all-around competency while focusing plenty of attention into the uncommon practice of large-scale, team diving, utilizing setup dives, safety divers, and inwater support. We developed diver propulsion vehicle (DPV) towing techniques, which is something that had not been done previously. We mostly ignored and then rewrote CNS oxygen toxicity calculations, developed novel strategies for calculating decompression time, and created and refined standard procedures for everything from bottle switching to equipment configurations. Many of these developments arose from simple necessity. There were no available decompression programs and no decompression tables available for the dives we were doing. Commonly used calculations designed to reduce the risk of oxygen toxicity were useless to our teams, because even our more casual dives were 10, 20, or even 30 times the allowable limit. The industry today takes most of this for granted, but in the early days of technical diving, we had very few tools, save a deep motivation to go where no one had gone before.

Many of these adventures included friends in the Woodville Karst Plain Project (WKPP), where I refined policies within the team and most directly with longtime dive buddy George Irvine. This “Doing it Right” (DIR) approach sought to create a more expansive system than Hogarthian diving, which itself had been born in the early years of the WKPP and was named after William Hogarth Main, a friend and frequent dive buddy of the time. By this point, I had been writing about and expanding upon Hogarthian diving for many years. More and more of the ideas we wanted to develop were not Bill Main’s priorities and lumping them into his namesake became impractical, especially given all the debate within the community over what was and was not Hogarthian.
A similar move from DIR occurred some years later when GUE stepped away from the circular debates that sought to explain DIR and embraced a GUE configuration with standard protocols, something entirely within our scope to define.
These accumulating events reached critical mass in 1998. I had experienced strong resistance to any form of standardization, even having been asked to join a special meeting of the board of directors (BOD) for a prominent cave diving agency. Their intention was to discourage me from using any form of standard configuration, claiming that students should be allowed to do whatever they “felt’ was best. It was disconcerting for me, as a young instructor, to be challenged by pioneers in the sport; nevertheless, I couldn’t agree with the edict that someone who was doing something for the first time should be tasked with determining how it should be done.
This sort of discussion was common, but the final straw occurred when I was approached by the head of a technical diving agency, an organization for which I had taught for many years. I was informed that he considered it a violation of standards not to teach air to a depth of at least 57 m/190 ft. This same individual told me that I had to stop using MOD bottle markings and fall in line with the other practices endorsed by his agency. Push had finally come to shove, and I set out to legitimize the training methods and dive protocols that had been incubating in my mind and refined with our teams over the previous decade. Years of trial and many errors while operating in dynamic and challenging environments were helping us to identify what practices were most successful in support of excellence, safety, and enjoyment.
Forming GUE
Forming GUE as a non-profit company was intended to neutralize the profit motivations that appeared to plague other agencies. We hoped to remove the incentive to train—and certify—the greatest number of divers as quickly as possible because it seemed at odds with ensuring comfortable and capable divers. The absence of a profit motive complemented the aspirational plans that longtime friend Todd Kincaid and I had dreamed of. We imagined a global organization that would facilitate the efforts of underwater explorers while supporting scientific research and conservation initiatives.
I hoped to create an agency that placed most of the revenue in the hands of fully engaged and enthusiastic instructors, allowing them the chance to earn a good living and become professionals who might stay within the industry over many years. Of course, that required forgoing the personal benefit of ownership and reduced the revenue available to the agency, braking its growth and complicating expansion plans. This not only slowed growth but provided huge challenges in developing a proper support network while creating the agency I envisioned. There were years of stressful days and nights because of the need to forgo compensation and the deep dependance upon generous volunteers who had to fit GUE into their busy lives. If it were not for these individuals and our loyal members, we would likely never have been successful. Volunteer support and GUE membership have been and remain critical to the growing success of our agency. If you are now or have ever been a volunteer or GUE member, your contribution is a significant part of our success, and we thank you.

The challenges of the early years gave way to steady progress—always slower than desired, with ups and downs, but progress, nonetheless. Some challenges were not obvious at the outset. For example, many regions around the world were very poorly developed in technical diving. Agencies intent on growth seemed to ignore that problem, choosing whoever was available, and regardless of their experience in the discipline, they would soon be teaching.
This decision to promote people with limited experience became especially problematic when it came to Instructor Trainers. People with almost no experience in something like trimix diving were qualifying trimix instructors. Watching this play out in agency after agency, and on continent after continent, was a troubling affair. Conversely, it took many years for GUE to develop and train people of appropriate experience, especially when looking to critical roles, including high-level tech and instructor trainers. At the same time, GUE’s efforts shaped the industry in no small fashion as agencies began to model their programs after GUE’s training protocols. Initially, having insisted that nobody would take something like Fundamentals, every agency followed suit in developing their own version of these programs, usually taught by divers that had followed GUE training.
This evolving trend wasn’t without complexity but was largely a positive outcome. Agencies soon focused on fundamental skills, incorporated some form of problem-resolution training, adhered to GUE bottle and gas switching protocols, reduced insistence on deep air, and started talking more about developing skilled divers, among other changes. This evolution was significant when compared to the days of arguing about why a person could not learn to use trimix until they were good while diving deep on air.
To be sure, a good share of these changes was more about maintaining business relevance than making substantive improvements. The changes themselves were often more style than substance, lacking objective performance standards and the appropriate retraining of instructors. Despite these weaknesses, they remain positive developments. Talking about something is an important first step and, in all cases, it makes room for strong instructors in any given agency to practice what is being preached. In fact, these evolving trends have allowed GUE to now push further in the effort to create skilled and experienced divers, enhancing our ability to run progressively more elaborate projects with increasingly more sophisticated outcomes.
The Future of GUE
The coming decades of GUE’s future appear very bright. Slow but steady growth has now placed the organization in a position to make wise investments, ensuring a vibrant and integrated approach. Meanwhile, evolving technology and a broad global base place GUE in a unique and formidable position. Key structural and personnel adjustments complement a growing range of virtual tools, enabling our diverse communities and representatives to collaborate and advance projects in a way that, prior to now, was not possible. Strong local communities can be easily connected with coordinated global missions; these activities include ever-more- sophisticated underwater initiatives as well as structural changes within the GUE ecosystem. One such forward-thinking project leverages AI-enabled, adaptive learning platforms to enhance both the quality and efficiency of GUE education. Most agencies, including GUE, have been using some form of online training for years, but GUE is taking big steps to reinvent the quality and efficiency of this form of training. This is not to replace, but rather to extend and augment inwater and in-person learning outcomes. Related tools further improve the fluidity, allowing GUE to seamlessly connect previously distant communities, enabling technology, training, and passion to notably expand our ability to realize our broad, global mission.

Meanwhile, GUE and its range of global communities are utilizing evolving technologies to significantly expand the quality and scope of their project initiatives. Comparing the impressive capability of current GUE communities with those of our early years shows a radical and important shift, allowing results equal or even well beyond those possible when compared even with well-funded commercial projects. Coupled with GUE training and procedural support, these ongoing augmentations place our communities at the forefront of underwater research and conservation. This situation will only expand and be further enriched with the use of evolving technology and closely linked communities. Recent and planned expansions to our training programs present a host of important tools that will continue being refined in the years to come. Efforts to expand and improve upon the support provided to GUE projects with technology, people, and resources are now coming online and will undoubtedly be an important part of our evolving future.
The coming decades will undoubtedly present challenges. But I have no doubt that together we will not only overcome those obstacles but we will continue to thrive. I believe that GUE’s trajectory remains overwhelmingly positive, for we are an organization that is continually evolving—driven by a spirit of adventure, encouraged by your heartwarming stories, and inspired by the satisfaction of overcoming complex problems. Twenty-five years ago, when I took the path less traveled, the vision I had for GUE was admittedly ambitious. The reality, however, has exceeded anything I could have imagined. I know that GUE will never reach a point when it is complete but that it will be an exciting lifelong journey, one that, for me, will define a life well lived. I look forward our mutual ongoing “Quest for Excellence.”
See Listings Below For Additional Resources On GUE And GUE Diving!

Jarrod is an avid explorer, researcher, author, and instructor who teaches and dives in oceans and caves around the world. Trained as a geologist, Jarrod is the founder and president of GUE and CEO of Halcyon and Extreme Exposure while remaining active in conservation, exploration, and filming projects worldwide. His explorations regularly place him in the most remote locations in the world, including numerous world record cave dives with total immersions near 30 hours. Jarrod is also an author with dozens of publications, including three books.
A Few GUE Fundamentals
Similar to military, commercial and public safety divers, Global Underwater Explorers (GUE) is a standards-based diving community, with specific protocols, standard operating procedures (SOPs) and tools. Here are selected InDEPTH stories on some of the key aspects of GUE diving, including a four-part series on the history and development of GUE decompression procedures by founder and president Jarod Jablonski.

Anatomy of a Fundamentals Class
GUE Instructor Examiner Guy Shockey explains the thought and details that goes into GUE’s most popular course, Fundamentals, aka “Fundies,” which has been taken by numerous industry luminaries. Why all the fanfare? Shockey characterizes the magic as “simple things done precisely!

Back to Fundamentals: An Introduction to GUE’s Most Popular Diving Course
Instructor evaluator Rich Walker attempts to answer the question, “why is Fundamentals GUE’s most popular diving course?” Along the way, he clarifies some of the myths and misconceptions about GUE training. Hint: there is no Kool-Aid.

As you’d expect, Global Underwater Explorers (GUE) has a standardized approach to prepare your equipment for the dive, and its own pre-dive checklist: the GUE EDGE. Here explorer and filmmaker Dimitris Fifis preps you to take the plunge, GUE-style.

The Flexibility of Standard Operating Procedures
Instructor trainer Guy Shockey discusses the purpose, value, and yes, flexibility of standard operating procedures, or SOPs, in diving. Sound like an oxymoron? Shockey explains how SOPs can help offload some of our internal processing and situational awareness, so we can focus on the important part of the dive—having FUN!

Standard Gases: The Simplicity of Everyone Singing the Same Song
Like the military and commercial diving communities before them, Global Underwater Explorers (GUE) uses standardized breathing mixtures for various depth ranges and for decompression. Here British wrecker and instructor evaluator Rich Walker gets lyrical and presents the reasoning behind standard mixes and their advantages, compared with a “best mix” approach. Don’t worry, you won’t need your hymnal, though Walker may have you singing some blues.

Rules of Thumb: The Mysteries of Ratio Deco Revealed
Is it a secret algorithm developed by the WKPP to get you out of the water faster sans DCI, or an unsubstantiated decompression speculation promoted by Kool-Aid swilling quacks and charlatans? British tech instructor/instructor evaluator Rich Walker divulges the arcane mysteries behind GUE’s ratio decompression protocols in this first of a two part series.

The Thought Process Behind GUE’s CCR Configuration
Global Underwater Explorers is known for taking its own holistic approach to gear configuration. Here GUE board member and Instructor Trainer Richard Lundgren explains the reasoning behind its unique closed-circuit rebreather configuration. It’s all about the gas!

GUE and the Future of Open Circuit Tech Diving
Though they were late to the party, Global Underwater Explorers (GUE) is leaning forward on rebreathers, and members are following suit. So what’s to become of their open circuit-based TECH 2 course? InDepth’s Ashley Stewart has the deets.

Diving projects, or expeditions—think Bill Stone’s Wakulla Springs 1987 project, or the original explorations of the Woodville Karst Plain’s Project (WKPP)—helped give birth to technical diving, and today continue as an important focal point and organizing principle for communities like Global Underwater Explorers (GUE). The organization this year unveiled a new Project Diver program, intended to elevate “community-led project dives to an entirely new level of sophistication.” Here, authors Guy Shockey and Francesco Cameli discuss the power of projects and take us behind the scenes of the new program

Decompression, Deep Stops and the Pursuit of Precision in a Complex World In this first of a four-part series, Global Underwater Explorers’ (GUE) founder and president Jarrod Jablonski explores the historical development of GUE decompression protocols, with a focus on technical diving and the evolving trends in decompression research.