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Get your Trimmings right this Christmas

Fourth Element gives us some ideas for holiday gifts for divers!



We’re picky humans us divers. The sight of a hose marginally out of place, a slightly off frog kick…how could anyone possibly find us the perfect Christmas present? No, a pair of Santa socks from M&S will NOT do under my made-to-measure drysuit thanks very much mum. Even if they do have fluffy beards on them. 

Not another Christmas Jumper

A light-up gingerbread knit might win you some laughs around the dinner table but on the dive boat, frankly, it’s not gonna fly. Pre or post dive it’s essential to stay warm and whilst traditional knitwear can indeed provide warmth, once it gets (inevitably) wet that’s the end of your snug sweater. Add a performance hoodie to your list like the Xerotherm or (newly in) Arctic. These are made from the same materials as our undersuits: perform when wet, low bulk, high insulation and are just so darn comfy.

Chests and nuts roasting by an open fire

You know what’s better than a roaring fire? A set of X-Core Vest and Leggings. And you won’t even need to do a mad dash to the shop for the batteries that didn’t come included because this thermal baselayer uses technology that draws heat from your OWN body with an additional chest panel minimising the rush of cold air from your inlet valve. Also request a J2 if you’re feeling cheeky as it’s the best wicking layer to wear underneath if you get TOO warm.

Fill up my stocking with stockings

No, as previously mentioned not the pack-of-7 cottons featuring every day of the week. Diving at depth or in cold waters requires some serious thermal protection for your feet which are particularly exposed during a dive. This means socks designed specifically for the job. You’ll want a Xerotherm pair as a minimum or ask for the Arctic, Hotfoot or – if they’re feeling real swish – Hotfoot Pro for multiple layers that trap air, insulating your feet in a cocoon of loveliness.

Manta Claus is coming to town

Tops you can wear even when you’re not diving (when?!), make for a more versatile gift. Something subtle like our new Manta Polo or our Stop Breathe T-shirts are perfect wardrobe additions for everyday. Or go full on dive ‘cause we know thats what you really, really want, and pop Unexplored or OK Girl Tee onto your wish list. Aunty Linda will repeatedly ask you what “that funny symbol” means, but thats mainly down to the 11am sherries. If all else fails Ask for a fourth element gift voucher. Then you can spend boxing day gorging on leftover turkey sandwiches whilst browsing shiny new things online. Christmas – done. Gifts of comfort and joy this way >


Our Most Read Stories of 2020

Dive into our most read stories of 2020. Can cameras kill? What about those peculiar GUE rebreathers? Gradient factors anyone? Was it a world record dive? Find out.




Header photo by Sean Romanowski

Greetings Tekkies,

This December marks the second full year of publishing InDepth, and what a crazy year it’s been. With the pandemic still raging throughout most of the world, it has been a most challenging year for the diving industry, as I’m sure you’re aware. I would like to take this opportunity to thank you, our readers for your continuing interest and support, and also thank our thoughtful contributors who make the blog possible.

Over the last year, we published nearly 100 InDepth stories covering the latest developments in exploration, technology, training, conservation, diving science & medicine, image making and technical diving culture. We also added select translations into Chinese, Italian, and Spanish . In doing so, I believe that we have grown our coverage in terms of breadth, depth and sophistication. Call it, a geeky labor of love!

In addition, we’ve added some depth-full sponsors to the mix, that have made it possible to grow and sustain InDepth. Our special thanks to DAN Europe, Dive Rite, Divesoft, Fourth Element, Halcyon, The Human Diver, and Shearwater Research. May your brands continue to flourish! 

Similar to 2019, we celebrate the coming new year with our Most Read Stories from 2020/2019. If you like what you read, please SUBSCRIBE, it’s free! That will ensure you’ll get our latest stories and content delivered to your inbox. Here’s to a hopefully wet and most excellent 2021!

—Michael Menduno/M2

Photo by Natalie Gibb

1. Cameras Kill Cavers Again 

Cave explorer, photographer and instructor Natalie L Gibb wants to make “taking pictures” the sixth rule accident analysis. How can toting a camera underground get you into trouble? Take a breath, clip off your camera, and say cheese, Gibb will explain.

Photo by Ortwin Khan

2. The Thinking Behind GUEs Closed Circuit Rebreather Configuration 

GUE 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!

Photo by Joakim Hjelm.

3. Gradient Factors in a Post Deep Stop World 

World-recognized decompression physiologist and cave explorer David Doolette explains the new evidence-based findings on “deep stops,” and shares how and why he sets his own gradient factors. His recommendations may give you pause to stop (shallower).

Image courtesy of DeeperBlue.com.

4. Fact or Fiction: Revisiting the Guinness World Record Dive 

Newly released information calls into question the validity of former Egyptian Army Colonel and instructor trainer Ahmed Gabr’s 2014 world record scuba dive to 332 m/1,090 ft in the Red Sea. InDepth editor-in-chief Michael Menduno reports on what we’ve learned, why this information is coming out now, and what it all may mean.

Photo courtesy of Sea Shepherd.

5. Can We Save Our Planet? What About Ourselves? Interview With Sea Shepherd founder Paul Watson.

Managing editor Amanda White poses the BIG questions to environmental activist Captain Paul Watson, founder of Sea Shepherd Conservation Society and the architect behind its strategy of aggressive non-violence. His answers may surprise you—and even bring you to tears. What motivates the 70-year Environmental Hero of the 20th Century to keep up the fight despite widespread ignorance, apathy and greed? Find out.

Photo by Derk Remmers.

6. Isobaric Counter Diffusion in the Real World 

Isobaric counterdiffusion is one of those geeky, esoteric subjects that some tech programs deem of minor relevance, while others regard it as a distinct operational concern. Divers Alert Network’s Reilly Fogarty examines the physiological underpinnings of ICD, some of the key research behind it, and discusses its application to tech diving.

Photo courtesy of Michal Guba.

7. Deepest Freshwater Flooded Abyss in the World 

The efforts to explore and map Hranice Abyss, located in Hranice (Přerov District) in the Czech Republic span more a century. Currently, the monstrous chasm is known to reach 384 m/1260 ft deep. Explorer and member of the Czech Speleological Society Michal Guba has the deets.

Photo by Rich Denmark.

8. Urination Management Considerations for Women Technical Divers

Tech diver and doctoral student, Payal Razdan, offers an in-depth review of the options available to women tech divers for handling the call of nature.

Photo by Kirill Egorov.

9. Situational Awareness and Decision Making In Diving

Situational awareness is critical to diving safety, right? But how much of your mental capacity should be devoted to situational monitoring, e.g., How deep am I? How much gas do I have? Where is my buddy? Where is my boat? More importantly, how does one develop that capacity? Here GUE Instructor Trainer Guy Shockey, who is also a human factors or non-technical skills instructor, explores the nature and importance of situational awareness, and what you can do to up your game.

10. Examining Early Technical Diving Deaths

The early days of technical diving were marred by an alarming number of fatalities that threatened the viability of this emerging form of diving. Here InDepth editor-in-chief Michael Menduno presents the original accident analyses of 44 incidents that resulted in 39 fatalities and 12 injuries, as reported in aquaCORPS Journal and technicalDIVER in the early to mid 1990s.

11. A Voice In The Wilderness

Just when you thought you’ve seen it all, along comes underground picture-maker SJ Alice Bennett, who is shedding new light on the dark, moody, twisting karst passageways that form what explorer Jill Heinerth calls “the veins of Mother Earth.” If you’re ready for a new perspective on the ‘doing of cave diving,’ switch on your primary and dive right in.

Continue Reading


Education, Conservation, and Exploration articles for the diving obsessed. Subscribe to our monthly blog and get our latest stories and content delivered to your inbox every Thursday.

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