InDEPTH Magazine

02/09/2025

🚨 𝗦𝘂𝗿𝘃𝗶𝘃𝗶𝗻𝗴 𝗘𝗱𝗱’𝘀 𝗕𝘂𝗯𝗯𝗹𝗲𝗹𝗲𝘀𝘀 𝗕𝗼𝗼𝘁𝗰𝗮𝗺𝗽: 𝗔 𝗗𝗲𝗲𝗽 𝗗𝗶𝘃𝗲 𝗜𝗻𝘁𝗼 𝗥𝗲𝗯𝗿𝗲𝗮𝘁𝗵𝗲𝗿 𝗧𝗿𝗮𝗶𝗻𝗶𝗻𝗴 🚨

Ready to take the plunge into rebreather diving? 🌊 Or maybe you're eyeing legendary instructor Edd Sorensen's rigorous training? Get the real scoop from Dive911 instructors Wally Endes & Christine Tamburri as they share their wild journey through KISS Sidewinder training with THE Edd Sorensen. 💥💦

It wasn’t a walk in the park — think military boot camp meets intense, hands-on diving. From frog kicks 🦵 to helicopter turns ✈️, every moment was a challenge.

What’s it really like training with Edd? Surprising. Exhausting. Rewarding. But so worth it. 🏅 Check out the full story and find out what it truly takes to dive into the deep with a KISS Sidewinder.

💬 Got thoughts or questions? Drop a comment or send us a message!

👉 𝗥𝗲𝗮𝗱 𝗺𝗼𝗿𝗲: https://indepthmag.com/the-trials-tribulations-and-triumphs-of-surviving-edds-bubbleless-bootcamp/

02/08/2025

🚀 𝗠𝗲𝗲𝘁 𝘁𝗵𝗲 𝗦𝗘𝗔𝗟 𝗦𝗟:𝟬𝟭 – 𝗧𝗵𝗲 𝗨𝗹𝘁𝗶𝗺𝗮𝘁𝗲 𝗗𝗿𝘆𝘀𝘂𝗶𝘁 𝗳𝗼𝗿 𝗛𝗮𝗿𝗱𝗰𝗼𝗿𝗲 𝗘𝘅𝗽𝗹𝗼𝗿𝗲𝗿𝘀! 🚀

XDEEP’s Exploration Support Program challenged SEAL to create the ultimate drysuit—light and flexible yet tough and durable. The result? The SL:01, a groundbreaking double-shell design engineered for the harshest environments.

🔹 Superfabric Protection: Embedded resin dots provide Kevlar-like durability without stiffness, making it cut-proof and abrasion-resistant.
🔹 Military-Inspired Forearm Mounting System: Attach essentials like computers, CCR handsets, and cave markers with unmatched flexibility.

🔥 Ready to level up your dive gear? Customise your SL:01 now! 🔥
👉 𝗘𝘅𝗽𝗹𝗼𝗿𝗲 𝗵𝗲𝗿𝗲: https://www.sealdrysuits.eu

02/07/2025

𝗖𝗲𝗹𝗲𝗯𝗿𝗮𝘁𝗶𝗻𝗴 𝟭𝟬𝟬 𝗬𝗲𝗮𝗿𝘀 𝗼𝗳 𝗛𝗲𝗹𝗶𝘂𝗺 𝗗𝗶𝘃𝗶𝗻𝗴!

In 2024, the world marked a century since divers first breathed helium under pressure. Tech diving instructor and scientist Jeff Bozanic teamed up with InDEPTH to bring us a fascinating retrospective on helium’s role in undersea exploration—from early experiments to modern-day trimix and heliox dives beyond 305 m/1000 ft.

Dive in to discover how helium shaped commercial, military, and scientific diving, and why it’s become essential for tech divers seeking to conquer the depths.

📖 𝗥𝗲𝗮𝗱 𝗺𝗼𝗿𝗲: https://indepthmag.com/a-hundred-years-of-helium/

02/06/2025

02/04/2025

⚠️ 𝗗𝗜𝗔𝗟 𝗜𝗡 𝗬𝗢𝗨𝗥 𝗗𝗖𝗦 𝗥𝗜𝗦𝗞: 𝗧𝗛𝗘 𝗧𝗛𝗔𝗟𝗠𝗔𝗡𝗡 𝗔𝗟𝗚𝗢𝗥𝗜𝗧𝗛𝗠
Photo by Derk Remmers

Did you know that as tech dives get deeper and longer, the risk of DCS skyrockets? With Bühlmann algorithms, you could be looking at a 1-in-3 chance of decompression sickness on extreme dives! 😳

That’s why the US Navy switched to the Thalmann iso-risk decompression algorithm in 2008—allowing divers to fine-tune their DCS risk while optimizing decompression time. But not all tekkies want to spend extra time hanging.

Tech instructor & dive geek Tim Blömeke breaks down what you need to know about risk-based deco models & how they could change your approach to deep diving.

📖 𝗥𝗲𝗮𝗱 𝘁𝗵𝗲 𝗳𝘂𝗹𝗹 𝗮𝗿𝘁𝗶𝗰𝗹𝗲: 𝗵𝘁𝘁𝗽𝘀: //indepthmag.com/thalmann-algorithm/

💬 Would you trade longer deco for lower DCS risk? Let’s discuss!

02/03/2025

𝗚𝗲𝘁 𝗜𝗻𝗗𝗘𝗣𝗧𝗛 & 𝗦𝘁𝗮𝘆 𝗖𝗼𝗻𝗻𝗲𝗰𝘁𝗲𝗱 𝘁𝗼 𝘁𝗵𝗲 𝗧𝗲𝗸 𝗗𝗶𝘃𝗲 𝗪𝗼𝗿𝗹𝗱!

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📖 𝗦𝘂𝗯𝘀𝗰𝗿𝗶𝗯𝗲 𝗳𝗼𝗿 𝗙𝗥𝗘𝗘 𝘁𝗼𝗱𝗮𝘆! → https://indepthmag.com/subscribe/

💬 What’s been your favorite InDEPTH article so far? Let us know in the comments!

02/03/2025

𝗖𝗮𝘃𝗲 𝗘𝘅𝗽𝗹𝗼𝗿𝗮𝘁𝗶𝗼𝗻 𝗮𝘁 𝘁𝗵𝗲 𝗘𝗱𝗴𝗲: 𝗠𝗲𝗲𝘁 𝘁𝗵𝗲 𝟮𝟬𝟮𝟰-𝟮𝟱 𝗙𝗔𝗧𝗛𝗢𝗠 𝗘𝘅𝗽𝗹𝗼𝗿𝗲𝗿𝘀
Photo by Joram Mennes

This year, two elite explorers, Osama Gobara and Mauro Bordignon, are taking on new frontiers in the 2024-25 FATHOM Explorers program. From extreme depths to uncharted passageways, these divers are documenting, mapping, and redefining what’s possible in underwater exploration.

🔹 Osama Gobara – Originally from Austria, Osama now calls Mexico’s vast cave systems home. With 15+ years of exploration experience, he combines his background in hydrographic surveying to create 3D cave maps and digital models, revealing the secrets of the underground.

🔹 Mauro Bordignon – With over 20 years of cave diving experience, Mauro has explored chilling European caves, high-altitude Arizona mines, and the depths of Africa’s desert cave systems. When he’s not pushing limits, he’s training the next generation of cave divers and explorers.

📖 𝗥𝗲𝗮𝗱 𝗺𝗼𝗿𝗲 𝗮𝗯𝗼𝘂𝘁 𝘁𝗵𝗲𝗶𝗿 𝘄𝗼𝗿𝗸 𝗮𝗻𝗱 𝘁𝗵𝗲 𝗳𝘂𝘁𝘂𝗿𝗲 𝗼𝗳 𝗰𝗮𝘃𝗲 𝗱𝗶𝘃𝗶𝗻𝗴: https://www.fathomdive.com/in-action/explorers/

💬 If you could explore any underwater cave system in the world, where would it be? Let’s discuss!

02/03/2025

𝗘𝘅𝗽𝗹𝗼𝗿𝗶𝗻𝗴 𝘁𝗵𝗲 𝘂𝗻𝗸𝗻𝗼𝘄𝗻! The 2024-25 FATHOM Explorers, Osama Gobara & Mauro Bordignon, are mapping & documenting the depths of the world’s caves.

Read more: https://www.fathomdive.com/in-action/explorers/

Photo by Joram Mennes

02/02/2025

🧘‍♂️ 𝗬𝗼𝗴𝗮 𝗳𝗼𝗿 𝗧𝗲𝗰𝗵 𝗗𝗶𝘃𝗲𝗿𝘀: 𝗕𝗿𝗲𝗮𝘁𝗵𝗲, 𝗙𝗼𝗰𝘂𝘀, 𝗗𝗶𝘃𝗲 𝗕𝗲𝘁𝘁𝗲𝗿!

Our freediving friends have long known the benefits of yoga—but did you know it can be a game-changer for tech divers too? With heavy gear, extended decompression, and demanding environments, breath control, flexibility, and mental clarity are more important than ever.

Instructors Tamara Adame & Maria Shagina break down how yoga can:

✅ Improve breath control & air consumption
✅ Increase flexibility & core strength for better trim & movement
✅ Enhance mental focus & relaxation before and after dives

They even share simple, effective yoga poses to help you get started—no studio required!

📖 𝗥𝗲𝗮𝗱 𝘁𝗵𝗲 𝗳𝘂𝗹𝗹 𝗴𝘂𝗶𝗱𝗲 𝗮𝗻𝗱 𝘀𝘁𝗮𝗿𝘁 𝘆𝗼𝘂𝗿 𝘆𝗼𝗴𝗮 𝗷𝗼𝘂𝗿𝗻𝗲𝘆 𝘁𝗼𝗱𝗮𝘆: https://indepthmag.com/yoga-for-tech-divers/

💬 Have you tried yoga for diving? Let us know your favorite poses in the comments!

02/01/2025

𝗦𝗵𝗲𝗮𝗿𝘄𝗮𝘁𝗲𝗿: 𝟮𝟬 𝗬𝗲𝗮𝗿𝘀 𝗼𝗳 𝗗𝗶𝘃𝗲 𝗜𝗻𝗻𝗼𝘃𝗮𝘁𝗶𝗼𝗻
For two decades, Shearwater Research has been at the forefront of dive computer technology, creating simple, intuitive, and powerful tools for technical and recreational divers alike.

Founded in 2004, Shearwater’s journey began with a vision: to build reliable, easy-to-use dive computers designed by divers, for divers. That philosophy remains unchanged.

🔹 From the groundbreaking Pursuit to today’s cutting-edge Teric & Perdix 2, Shearwater continues to push boundaries, making deep diving safer and more accessible.

📖 𝗘𝘅𝗽𝗹𝗼𝗿𝗲 𝗦𝗵𝗲𝗮𝗿𝘄𝗮𝘁𝗲𝗿’𝘀 𝗷𝗼𝘂𝗿𝗻𝗲𝘆 𝗮𝗻𝗱 𝗹𝗲𝗴𝗮𝗰𝘆: https://shearwater.com/pages/company-timeline

💬 What was your first Shearwater dive computer? Drop it in the comments!

Shearwater Research

01/31/2025

𝗦𝗘𝗔𝗟𝗔𝗕 𝗜𝗜𝗜: 𝗧𝗵𝗲 𝗨𝗻𝘁𝗼𝗹𝗱 𝗦𝘁𝗼𝗿𝘆 𝗼𝗳 𝗮 𝗡𝗮𝘃𝘆 𝗦𝗮𝘁𝘂𝗿𝗮𝘁𝗶𝗼𝗻 𝗗𝗶𝘃𝗶𝗻𝗴 𝗧𝗿𝗮𝗴𝗲𝗱𝘆

In 1969, SEALAB III was set to push the limits of saturation diving, taking US Navy aquanauts to 400 ft (122m). But tragedy struck. Barry Cannon, a talented and dedicated aquanaut, died shortly after the habitat was lowered to the ocean floor. Was it really a rebreather failure, or was the truth buried with the project?

🔎 55 years later, ocean engineer Kevin Hardy uncovers the real story in a gripping investigation that challenges the original Navy Board of Inquiry findings. Turns out, the rebreather wasn’t to blame at all.

What went wrong?
❌ Systemic command failures
❌ Ignored warning signs
❌ A lost opportunity for forensic analysis

SEALAB III was abruptly shut down, its habitat ordered destroyed, and its aquanauts silenced. A lost chapter in diving history—until now.

📖 𝗥𝗲𝗮𝗱 𝘁𝗵𝗲 𝗳𝘂𝗹𝗹 𝗲𝘅𝗽𝗼𝘀𝗲́: https://indepthmag.com/sealab-1969-divers-story/

💬 What do you think? Should the truth behind SEALAB III finally come to light?

01/30/2025

🤿 𝗕𝗮𝗶𝗹𝗼𝘂𝘁 𝗥𝗲𝗯𝗿𝗲𝗮𝘁𝗵𝗲𝗿𝘀: 𝗚𝗮𝗺𝗲-𝗖𝗵𝗮𝗻𝗴𝗲𝗿 𝗼𝗿 𝗖𝗼𝗺𝗽𝗹𝗲𝘅𝗶𝘁𝘆 𝗢𝘃𝗲𝗿𝗹𝗼𝗮𝗱?

Karst Underwater Research (KUR) divers Bob Beckner & Matt Vinzant share their real-world experiences with bailout rebreathers (BOBs). From gas planning to team integration, they break down the pros, cons, and complexities of using BOBs in extreme technical dives.

💡 Are BOBs the future of deep diving? Or do they add more risk than reward?

📖 𝗥𝗲𝗮𝗱 𝘁𝗵𝗲 𝗳𝘂𝗹𝗹 𝗮𝗿𝘁𝗶𝗰𝗹𝗲: https://indepthmag.com/diving-bailout-rebreathers/

💬 Tell us: Would you add a BOB to your setup? Why or why not?

01/29/2025

🎓 𝗠𝗮𝘀𝘁𝗲𝗿𝘆 𝗟𝗲𝗮𝗿𝗻𝗶𝗻𝗴 𝗶𝗻 𝗗𝗶𝘃𝗶𝗻𝗴 𝗘𝗱𝘂𝗰𝗮𝘁𝗶𝗼𝗻

At the Area9 Mastery Diving Research Center, we’re redefining how divers learn, train, and retain knowledge. Using the Area9 Rhapsode Capable™ learning platform, the most advanced adaptive learning system, we bring personalised, mastery-based education to diving—just like it does for medical specialists and defence training.

🔬 What makes it different?
✔️ Tracks experience & knowledge retention
✔️ Enhances skill acquisition with AI-driven personalisation
✔️ Research-backed by top education experts

🚀 𝗧𝗵𝗲 𝗳𝘂𝘁𝘂𝗿𝗲 𝗼𝗳 𝗱𝗶𝘃𝗲 𝘁𝗿𝗮𝗶𝗻𝗶𝗻𝗴 𝗶𝘀 𝗵𝗲𝗿𝗲! 𝗟𝗲𝗮𝗿𝗻 𝗺𝗼𝗿𝗲: https://www.masterydiving.com/research-exploration

01/28/2025

🌊 𝗗𝗶𝘃𝗲 𝗶𝗻𝘁𝗼 𝘁𝗵𝗲 𝗗𝗲𝗽𝘁𝗵𝘀 𝘄𝗶𝘁𝗵 𝗫𝗮𝘃𝗶𝗲𝗿 𝗠𝗲́𝗻𝗶𝘀𝗰𝘂𝘀 🌊
Photos courtesy of Xavier Meniscus.
Meet Xavier Méniscus, the man behind the deepest cave dive ever recorded—286m/938ft at Font Estramar. 🏆 This elite cave explorer doesn’t just dive deep; he redefines the limits of human exploration. Armed with three rebreathers, years of military and commercial diving experience, and unparalleled physiological tolerance, Xavier is a living legend in the world of cave diving.

📖 Read our exclusive interview with Xavier Méniscus to learn how he approaches these über-deep dives and explores the hidden mysteries of our planet: https://indepthmag.com/uber-deep-cave-diving-αn-interview-with-xavier-meniscus/

💬 What’s your take on diving to such depths? Could you handle the pressure? Let us know in the comments!

01/27/2025

🌊 𝗥𝗲𝗯𝗿𝗲𝗮𝘁𝗵𝗲𝗿 𝗧𝗿𝗮𝗶𝗻𝗶𝗻𝗴: 𝗔𝗿𝗲 𝗪𝗲 𝗖𝗲𝗿𝘁𝗶𝗳𝘆𝗶𝗻𝗴 𝗢𝘂𝗿𝘀𝗲𝗹𝘃𝗲𝘀 𝗶𝗻𝘁𝗼 𝗘𝘅𝘁𝗶𝗻𝗰𝘁𝗶𝗼𝗻? 🌊
By Jeffrey Bozanic, Ph.D.

Rebreather training is unlike anything else—it's brand-specific, configuration-specific, and may even be holding the diving industry back. 🚦 But what if there’s a better way? Veteran diving educator Jeffrey Bozanic dives deep into the topic and proposes a systems approach to training that could transform the industry. 🛠️

👉 𝗖𝗵𝗲𝗰𝗸 𝗼𝘂𝘁 𝘁𝗵𝗲 𝗳𝘂𝗹𝗹 𝗮𝗿𝘁𝗶𝗰𝗹𝗲 𝘁𝗼 𝗲𝘅𝗽𝗹𝗼𝗿𝗲 𝘁𝗵𝗶𝘀 𝘁𝗵𝗼𝘂𝗴𝗵𝘁-𝗽𝗿𝗼𝘃𝗼𝗸𝗶𝗻𝗴 𝗽𝗲𝗿𝘀𝗽𝗲𝗰𝘁𝗶𝘃𝗲: https://indepthmag.com/rebreather-training/

🔗 Take our quick Rebreather Training Survey and share your thoughts—your feedback matters!

💡 Do you think rebreather certification should focus more on systems instead of specific brands? Drop your views in the comments!

01/24/2025

📍 𝗠𝗮𝗽𝗽𝗶𝗻𝗴 𝘁𝗵𝗲 𝗨𝗻𝗸𝗻𝗼𝘄𝗻 🗺️

For nearly five decades, cavers have described “restrictions” (or “squeezes,” as British cavers say) as either minor or major. Now, Rory O’Keefe is updating cave cartography with a new grading system that’s all about accuracy and helping divers answer the big question: Can I fit through? 🫣

𝙎𝙦𝙪𝙚𝙚𝙯𝙚 𝙞𝙣𝙩𝙤 𝙩𝙝𝙚 𝙛𝙪𝙡𝙡 𝙨𝙩𝙤𝙧𝙮 > https://indepthmag.com/mapping-cave-restrictions/

01/23/2025

🌊 𝗗𝗶𝘃𝗲 𝗶𝗻𝘁𝗼 𝘁𝗵𝗲 𝗳𝗮𝘀𝗰𝗶𝗻𝗮𝘁𝗶𝗻𝗴 𝘄𝗼𝗿𝗹𝗱 𝗼𝗳 𝗰𝗮𝘃𝗲 𝗺𝗮𝗽𝗽𝗶𝗻𝗴 𝗮𝗻𝗱 𝗿𝗲𝘀𝘁𝗿𝗶𝗰𝘁𝗶𝗼𝗻𝘀!

Did you know the term “restrictions” was coined in 1975 by legendary explorer Sheck Exley? For nearly 50 years, cavers have been grading restrictions as “minor” and “major.” Now, cave cartographer Rory O’Keefe is revolutionizing the process with a new, measurement-based grading system to improve map accuracy and help divers navigate safely.

Squeeze into the details here 👉 indepthmag.com/mapping-cave-restrictions