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More People Have Been To The Moon

In 1997, British composer and cave diver Steve Thomas created what was the first album of “cave diving music” in celebration of he and his diving partner’s passage through the “Dip Sump Series” in the Ogof Ffynnon Ddu (OFD) cave system in South Wales. Now more than 20 years later in response to interest from fans, Thomas, who helped create this underground nano-genre, has released his album on Bandcamp. Here is InDepth editor-in-chief Michael Menduno’s original 1998 review.

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by Michael Menduno
Header image: Steve Thomas diving OFD mainstream sump, courtesy of S.Thomas

May, 1998—All-night jams, seamless acoustics, and umpteen boxes of half-eaten pizza are standard fare for most recording artists, but not for British composer Steve Thomas who spent two years recording by torch light, often submerged up to his waist in surging 6°C/42°F water, several kilometers beneath the earth. He says that the project was inspired by his underground proclivities.

The original review by Michael Menduno appeared in AQUA magazine in 1998.

“I didn’t volunteer to write the music,” explains the 36 year-old caver who writes scores for TV sports events and documentaries, and recently produced two albums with Tangerine Dream founder Steve Jolliffee. “I did it because I had no choice.”

Album cover image by Gavin Newman.

Aptly titled “More People Have Been To The Moon,” Thomas’s latest album combines resonant electronic music with the in-situ sounds of underground stream ways, reverberating drips, and the exhaust bubbles of cave divers finning through freatic passageways. It’s a personal record of his journey to a world where few have been. “I wanted to produce a musical piece that captured the emotions I experienced while exploring the Ogof Ffynnon Ddu system.” 

Coursing beneath the Brecon Beacons Mountains in South Wales, the system, pronounced Og-off-fun-on-thee, a Welsh name meaning “cave of the black waters”—it’s length unknown— is the site of one of the most complicated underwater caves in the UK—a knotty, kilometer-long sump complex called the Dip Sump Series which has confounded British cavers for more than 20 years.

Thomas and 51 year-old dive partner Clive Westlake were the first to negotiate a passageway through the claustrophobic, three-dimensional maze, threading their line through restrictions so tight that they had to breathe out to squeeze through. “Overcoming my fears to accomplish those dives inspired me like nothing has before.”

Filmed by Steve Thomas in the Dip Sump Series in 1999

Twelve humans have been to the moon, whereas only four intrepid souls have ever traversed the extremes of the Dip Sump Series and surfaced in the cave beyond Thomas’s album celebrates the passage.

Each of the 15 tracks, from the driving confidence of “High Plain Drifter” and edginess of “Space Haze” to the sacred sense of wonder evoked in “Ether Black,” was written for a specific event that occurred during the exploration.

Thomas would often come back from a dive and spend the evening and all of the next day in his studio writing music. “I tend to be very focused when I’m diving, but afterwards I experience an outpouring of music. It’s like having a built-in Hi-Fi.”

The Way We Were—Steve Thomas in his original 1997 studio.

Originally the underground artist planned to use a sample library to simulate cave sounds, but as the project progressed his purist instincts took over—only authentic sounds would do. The task proved more difficult than expected. For Thomas, the hardest part was keeping his recording equipment dry during the underwater cave diving sequences. His solution was to sheath the Walkman-sized DAT recorder and stereo microphones in double Durex condoms—one of the few “safe” aspects of the dives.

Since releasing “More People,” Thomas has been flooded with emails from around the world, as well as a growing number of visits to his website which features a photo gallery of the cave. He says that he honestly doesn’t know how many copies have been sold to date but regards it as an overwhelming success. As with cave diving, perhaps making the connection is what it’s all about. 

Making the connection. Photo by Gavin Newman

When I asked Thomas if he were planning a potential follow-up, he didn’t miss a beat. “It seems that I just can’t get away from it.”



Additional Resources

For more information about Steve Thomas and the album see: The World’s First Cave Diving Music

Find Thomas’s tracks here: More People Have Been To The Moon

Postscript: Having released his cave diving album in 1997, Thomas, who lives in Wales and still loves caving, flying his paramotor and spending lots of time in the Welsh mountains, inspired a host of “underground” artists—there are now a plethora of cave diving titles on iTunes. Ogof Ffynnon Ddu has also become a popular cave diving site though no new cave has been found since Thomas and Westlake’s early exploration.


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.

Cave

Cave Diving, Du’an China Edition

Finnish tech instructor and explorer Jani Niskanen takes us for a plunge into the underwater world of South China Karst, which was designated a UNESCO World Heritage Site in 2007. Break out the NAV kits.

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by Jani Niskanen. Special thanks to Edmund Yiu for additional information on cave diving in China.

Photos by Jani Niskanen unless noted.

Du’an, located in rural southern China, offers majestic hills and clear rivers, is quite the contrast to the bustling megacities of China, and is only a two-hour drive from Nanning, the provincial capital of Guangxi. Du’an is easily as beautiful as the world-famous Yangzhou area, with fewer tourists. Divers are attracted to the magnificent landscape of rivers and caves and underwater cave formations, which are some of the most beautiful in the world. 

Karst landscape and settlements between the mountains.
Author’s equipment ready for the dive at Tun Bang sinkhole.

The area is part of the huge expanse of the South China Karst system which spans from Guizhou, Yunnan, and Guangxi provinces all the way to Vietnam, and was designated a United Nations Educational, Scientific and Cultural Organization (UNESCO) World Heritage Site in 2007. In fact, according to one estimate, the province boasts more than 10,000 kilometers of underground rivers that supply water to the people in the area. As a result, there are many entrances and stairways built by villagers to collect water, some with pumping stations, that were not originally made for diving access. Getting access is not easy as they are located in rural mountainous area with no cellular reception or GPS navigation. Instead, one must rely on guides who know the area.

Leaving the daylight zone.
Cave divers all set and ready to start the dive into “Panda” Cave.

Cave diving in Du’an began in the 1970s when the first Russian divers  visited the area, to observe the underground rivers. According to local knowledge, the next team to visit was a British group that entered the area in the end of the 1980s. The actual official underwater research and mapping were started by a French team of divers in 2011. After that, they visited the area annually until 2019. 

The caves in the area vary in size from the spacious cavities to extreme restrictions that a diver can hardly negotiate through. Inside the caves, seasoned explorers can admire stunning stalactites and stalagmites formed thousands of years ago when many of these caves were dry, though the deeper areas that have been carved out by water flow are not decorated. In fact, in some of the deeper passages the walls are perfectly smooth as a result of water flowing through them over millennia. Diving in these caves feels as if you are diving through time.

Tank carrier. A local farmer helped us to carry tanks to the cave, which he was compensated for. He has perfected his carrying technique and made it look almost easy.

The Du’an region experiences strong seasonal fluctuations in water level, which in some places can vary as much as 40m/130 ft between dry and wet seasons, affecting both the flow and visibility. Diving in Du’an requires a Full Cave rating, and other technical diving training is highly recommended since the caves are rather deep and you will be likely racking up deco during your dives. 

The deepest explored caves in Du’an exceed 230m/750 ft, however average depths for our dives ranged from 30-40 m/100-130 ft. According to the locals, the best time to dive in Du’an Caves is in either April to May or October to November, some say as late as January, when the water situation in the caves is optimal.



Our Underground Journey

Our ten-day dive trip took place at the end of April, when the underground water level had just begun to rise in the springs; consequently, there was almost no flow, and we were forced to carry our tanks far inside the cave to begin the dive. We dived open circuit, and typical gas set up for the dive was to have 32% enriched air in our sidemount tanks and then we left a tank of 100% oxygen for decompression on the line at 6 m/20 ft. We managed to dive ten caves with a total runtime of 576 minutes.

The water temperature in the caves in the area is pleasant 20 degrees Celsius and thus gloves are not needed.
From the patterns on the wall of the cave, one can see how the water has created grooves in the limestone and smoothed the rough edges over the millennia. 

In some of the caves, we encountered extremely narrow passages, making sidemount configuration and single cylinders better for safety, convenience and logistics. Although the visibility ranged from 15 m/49 ft to 2 m/7 ft, the water temperature was a pleasant 20 degrees Celsius/68 degrees Fahrenheit. Drysuits are recommended, but gloves weren’t needed, which made our exploration more enjoyable. At the end of the ten days, we realized we left plenty to explore for our next expedition to this amazing region.

Du’an has one diving center, Blue Flag International, which was originally set up by the Tourism department of the Du’an county government with the help of the French exploration team in 2010/2011, who put in an extensive gas blending system. This modern and fully equipped dive operator is ready to serve even the most demanding of divers. They can support mixed gas divers conducting open circuit trimix and closed circuit  rebreather diving. Oxygen is relatively inexpensive and easy to source locally, and helium is generally less expensive in China than in other parts of Southeast Asia.

Cave diving instructor and local legend, Han Ting, runs the shop. He has explored over a hundred caves in this area and has leads to many more—there are many caves waiting to be explored.

Inside the Veins of Mother Earth. Photo by Vincent Lou

Scuba diving is a growing sport in China. Before COVID-19 restrictions, Chinese divers traveled to Southeast Asian tropical destinations, such as the Philippines and Thailand. Now that the restrictions are in place, divers have sought out domestic dive sites like those in Du’an and diving clubs and shops have begun to organize trips within the country. In addition to the caves of Du’an, there are domestic destinations like Hainan Island, which offers tropical warm waters. An even more exotic location is diving sunken portions of the Great Wall of China.

This story was originally published in Sukeltaja Magazine, the magazine of the Finnish Diver Federation, in May, 2021 

Additional Resources

UNESCO: South China Karst

World Heritage Datasheet: South China Karst


My name is Jani Niskanen. I am an SDI/TDI and PADI instructor with multiple specialties, including TDI cavern. I am TDI Full Cave Diver, and PADI Trimix. I am experienced in sidemount, single and double back mount diving in different environments, warm and cold waters. I am an EFR and FRIT instructor and a registered nurse with over 14 years of experience in the field in ATLS/ACLS emergency care mobile unit. I am a veteran and I have worked several years as a combat medic with the Finnish defense forces in many deployments. I am a scuba technician, compressor operator and trimix blender instructor. I have worked with diving in Thailand, Philippines, Mexico, China and I am dedicated to making good divers and not just “ticking the boxes”. Currently I work at the Finnish Embassy in Beijing, China.

You can find Jani here on Instagram and on Facebook at Expeditiondivers

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