InDEPTH Magazine

InDEPTH Magazine The only English-speaking magazine on the ๐ŸŒŽ dedicated to technical + mission-oriented diving

๐— ๐—ฒ๐—ฒ๐˜ ๐—š๐—จ๐—˜โ€™๐˜€ ๐Ÿฎ๐Ÿฌ๐Ÿฎ๐Ÿฑโ€“๐Ÿฎ๐Ÿฌ๐Ÿฎ๐Ÿฒ ๐—ก๐—ฒ๐˜…๐˜๐—š๐—ฒ๐—ป ๐—ฆ๐—ฐ๐—ต๐—ผ๐—น๐—ฎ๐—ฟ: ๐—จ๐—ป๐—ฑ๐—ฒ๐—ฟ๐˜„๐—ฎ๐˜๐—ฒ๐—ฟ ๐—ฃ๐—ต๐—ผ๐˜๐—ผ๐—ด๐—ฟ๐—ฎ๐—ฝ๐—ต๐—ฒ๐—ฟ & ๐—ฃ๐—น๐—ฎ๐—ป๐—ธ๐˜๐—ผ๐—ป ๐—ฆ๐˜๐—ผ๐—ฟ๐˜†๐˜๐—ฒ๐—น๐—น๐—ฒ๐—ฟ ๐—๐—ถ๐—ฎ๐—น๐—ถ๐—ป๐—ด ๐—–๐—ฎ๐—ถWhatโ€™s Next for Technica...
12/15/2025

๐— ๐—ฒ๐—ฒ๐˜ ๐—š๐—จ๐—˜โ€™๐˜€ ๐Ÿฎ๐Ÿฌ๐Ÿฎ๐Ÿฑโ€“๐Ÿฎ๐Ÿฌ๐Ÿฎ๐Ÿฒ ๐—ก๐—ฒ๐˜…๐˜๐—š๐—ฒ๐—ป ๐—ฆ๐—ฐ๐—ต๐—ผ๐—น๐—ฎ๐—ฟ: ๐—จ๐—ป๐—ฑ๐—ฒ๐—ฟ๐˜„๐—ฎ๐˜๐—ฒ๐—ฟ ๐—ฃ๐—ต๐—ผ๐˜๐—ผ๐—ด๐—ฟ๐—ฎ๐—ฝ๐—ต๐—ฒ๐—ฟ & ๐—ฃ๐—น๐—ฎ๐—ป๐—ธ๐˜๐—ผ๐—ป ๐—ฆ๐˜๐—ผ๐—ฟ๐˜†๐˜๐—ฒ๐—น๐—น๐—ฒ๐—ฟ ๐—๐—ถ๐—ฎ๐—น๐—ถ๐—ป๐—ด ๐—–๐—ฎ๐—ถ
Whatโ€™s Next for Technical Divers Who Crave Discovery Beyond Depth and Distance?

For most tech divers, exploration means deeper wrecks, longer gas plans, and calculated decompression. But thereโ€™s a whole universe beneath the waves we rarely see โ€” the unseen engines of the ocean that sustain every dive we plan and dream about.
Meet Jialing Cai โ€” GUEโ€™s 2025โ€“2026 NextGen Scholar, underwater photographer, science communicator, and plankton storyteller whose lens reveals life so small it shapes entire ecosystems. Her images show the breathtaking beauty of microscopic drifters that most divers overlook โ€” organisms that rise each night in a spectacular vertical migration few have witnessed.

What makes her journey inspiring for advanced technical divers isnโ€™t just the art โ€” itโ€™s the ambition. Trained in evolutionary biology, guided by mentors, and equipped with advanced diving skills through the GUE NextGen Scholarship, Jialing is preparing to combine technical precision with scientific discovery in colder, deeper waters where few have gone and even fewer have documented.

๐Ÿ‘‰ ๐—ฅ๐—ฒ๐—ฎ๐—ฑ ๐˜๐—ต๐—ฒ ๐—ณ๐˜‚๐—น๐—น ๐˜€๐˜๐—ผ๐—ฟ๐˜† & ๐—ฑ๐—ถ๐˜ƒ๐—ฒ ๐—ฑ๐—ฒ๐—ฒ๐—ฝ๐—ฒ๐—ฟ ๐—ถ๐—ป๐˜๐—ผ ๐˜๐—ต๐—ฒ ๐—ก๐—ฒ๐˜…๐˜๐—š๐—ฒ๐—ป ๐—ท๐—ผ๐˜‚๐—ฟ๐—ป๐—ฒ๐˜†:
๐Ÿ”— https://indepthmag.com/meet-gues-2025-2026-nextgen-scholar-underwater-photographer-plankton-storyteller-jialing-cai/

๐—•๐—น๐˜‚๐—ฒ๐—ฝ๐—ฟ๐—ถ๐—ป๐˜ ๐—ณ๐—ผ๐—ฟ ๐—ฆ๐˜‚๐—ฐ๐—ฐ๐—ฒ๐˜€๐˜€: ๐— ๐—ถ๐—ป๐—ฑ๐˜€๐—ฒ๐˜, ๐— ๐—ฎ๐˜€๐˜๐—ฒ๐—ฟ๐˜† & ๐— ๐—ผ๐—บ๐—ฒ๐—ป๐˜๐˜‚๐—บ ๐˜„๐—ถ๐˜๐—ต ๐—๐—ฎ๐—ฟ๐—ฟ๐—ผ๐—ฑ ๐—๐—ฎ๐—ฏ๐—น๐—ผ๐—ป๐˜€๐—ธ๐—ถWhat Can the Minds Who Shaped Technical Diving T...
12/14/2025

๐—•๐—น๐˜‚๐—ฒ๐—ฝ๐—ฟ๐—ถ๐—ป๐˜ ๐—ณ๐—ผ๐—ฟ ๐—ฆ๐˜‚๐—ฐ๐—ฐ๐—ฒ๐˜€๐˜€: ๐— ๐—ถ๐—ป๐—ฑ๐˜€๐—ฒ๐˜, ๐— ๐—ฎ๐˜€๐˜๐—ฒ๐—ฟ๐˜† & ๐— ๐—ผ๐—บ๐—ฒ๐—ป๐˜๐˜‚๐—บ ๐˜„๐—ถ๐˜๐—ต ๐—๐—ฎ๐—ฟ๐—ฟ๐—ผ๐—ฑ ๐—๐—ฎ๐—ฏ๐—น๐—ผ๐—ป๐˜€๐—ธ๐—ถ
What Can the Minds Who Shaped Technical Diving Teach You Next?

For decades, technical divers searched for language, culture, and clarity โ€” until ๐— ๐—ถ๐—ฐ๐—ต๐—ฎ๐—ฒ๐—น ๐— ๐—ฒ๐—ป๐—ฑ๐˜‚๐—ป๐—ผ gave our world a voice and a vision. He didnโ€™t just report technical diving: he named it, framed it, and connected the pioneers who expanded our underwater limits. Because of him, we measure depth not just in meters, but in mindset and mastery.

Now, that legacy evolves. ๐—๐—ฎ๐—ฟ๐—ฟ๐—ผ๐—ฑ ๐—๐—ฎ๐—ฏ๐—น๐—ผ๐—ป๐˜€๐—ธ๐—ถ โ€” pioneering technical and cave diver, founder and president of Global Underwater Explorers (GUE) โ€” has launched a new ongoing series that builds on and honors Michael Mendunoโ€™s spirit.
Titled ๐—•๐—น๐˜‚๐—ฒ๐—ฝ๐—ฟ๐—ถ๐—ป๐˜ ๐—ณ๐—ผ๐—ฟ ๐—ฆ๐˜‚๐—ฐ๐—ฐ๐—ฒ๐˜€๐˜€: Mindset, Mastery & Momentum, the series looks forward, challenging advanced divers to rethink how they approach training, decision-making, and performance.

A living roadmap shaped by two influential voices whose work defined the language and continues to shape the practice of technical diving.
๐Ÿ‘‰ ๐—ฅ๐—ฒ๐—ฎ๐—ฑ ๐˜๐—ต๐—ฒ ๐—ณ๐˜‚๐—น๐—น ๐—ฎ๐—ฟ๐˜๐—ถ๐—ฐ๐—น๐—ฒ โ€” ๐—ฎ๐—ป๐—ฑ ๐—ฑ๐—ถ๐˜ƒ๐—ฒ ๐—ฑ๐—ฒ๐—ฒ๐—ฝ๐—ฒ๐—ฟ ๐—ถ๐—ป๐˜๐—ผ ๐˜๐—ต๐—ฒ ๐—ป๐—ฒ๐˜„ ๐˜€๐—ฒ๐—ฟ๐—ถ๐—ฒ๐˜€ ๐—ต๐—ฒ๐—ฟ๐—ฒ: https://indepthmag.com/blueprint-for-success-a-tribute-to-michael-menduno/

A Tribute to Michael Menduno. Lead image by Dolina Pai Joan.

12/13/2025

InDEPTH began as a shared vision between two lifelong friends who spent more than 30 years nurturing open dialogue, thoughtful discussion, and a deep love for the underwater world. They imagined a space where diverse perspectives could meet, and where the evolving sport of scuba diving could be explored and celebrated. That vision grew into InDEPTH Magazine.

This new series โ€” and its companion podcasts โ€” carries that spirit forward, diving into distinctive and sometimes challenging topics through both writing and conversation. The first episode features Jarrod Jablonski together with Ulrik Christensen, setting the tone for the thoughtful discussions ahead.

In this opening article and podcast, Jarrod reflects on Michael Mendunoโ€™s enduring influence on the diving world and the foundations of modern technical diving. The conversation explores how ideas, culture, and curiosity shaped a generation of divers and why Mendunoโ€™s legacy continues to matter as we think about learning, growth, and the future of exploration.

Read (and listen) in InDEPTH โ†’ https://f.mtr.cool/plugchamsl



InDEPTH Magazine

๐—ช๐—ฒ ๐—›๐—ฎ๐˜ƒ๐—ฒ ๐—ฎ ๐—ช๐—ถ๐—ป๐—ป๐—ฒ๐—ฟ โ€” ๐—œ๐—ป๐——๐—˜๐—ฃ๐—ง๐—› ๐— ๐—ฎ๐—ด๐—ฎ๐˜‡๐—ถ๐—ป๐—ฒโ€™๐˜€ ๐—™๐—ถ๐—ฟ๐˜€๐˜ ๐—š๐—ถ๐˜ƒ๐—ฒ๐—ฎ๐˜„๐—ฎ๐˜†, ๐—ฆ๐—ฝ๐—ผ๐—ป๐˜€๐—ผ๐—ฟ๐—ฒ๐—ฑ ๐—ฏ๐˜† ๐—˜๐—”๐—ฆ๐—ฌ๐——๐—œ๐—ฉ๐—˜Weโ€™ve just wrapped up InDEPTH Magazineโ€™s firs...
12/13/2025

๐—ช๐—ฒ ๐—›๐—ฎ๐˜ƒ๐—ฒ ๐—ฎ ๐—ช๐—ถ๐—ป๐—ป๐—ฒ๐—ฟ โ€” ๐—œ๐—ป๐——๐—˜๐—ฃ๐—ง๐—› ๐— ๐—ฎ๐—ด๐—ฎ๐˜‡๐—ถ๐—ป๐—ฒโ€™๐˜€ ๐—™๐—ถ๐—ฟ๐˜€๐˜ ๐—š๐—ถ๐˜ƒ๐—ฒ๐—ฎ๐˜„๐—ฎ๐˜†, ๐—ฆ๐—ฝ๐—ผ๐—ป๐˜€๐—ผ๐—ฟ๐—ฒ๐—ฑ ๐—ฏ๐˜† ๐—˜๐—”๐—ฆ๐—ฌ๐——๐—œ๐—ฉ๐—˜

Weโ€™ve just wrapped up InDEPTH Magazineโ€™s first reader giveaway, and weโ€™re pleased to congratulate ๐˜”๐˜ช๐˜ญ๐˜ฐ ๐˜“๐˜ฆ๐˜ฌ๐˜ช๐˜ค (UK) as the winner. This marks the start of a series of periodic giveaways made possible through partnerships with established technical diving manufacturers.

๐—ง๐—ต๐—ฒ๐—ฟ๐—ฒโ€™๐˜€ ๐—ป๐—ผ ๐—ฝ๐—ฎ๐˜†๐˜„๐—ฎ๐—น๐—น ๐—ฎ๐—ป๐—ฑ ๐—ป๐—ผ ๐—ฒ๐˜…๐˜๐—ฟ๐—ฎ ๐˜€๐˜๐—ฒ๐—ฝ๐˜€. ๐—œ๐—ณ ๐˜†๐—ผ๐˜‚โ€™๐—ฟ๐—ฒ ๐—ฎ ๐—ณ๐—ฟ๐—ฒ๐—ฒ ๐—œ๐—ป๐——๐—˜๐—ฃ๐—ง๐—› ๐˜€๐˜‚๐—ฏ๐˜€๐—ฐ๐—ฟ๐—ถ๐—ฏ๐—ฒ๐—ฟ, ๐˜†๐—ผ๐˜‚โ€™๐—ฟ๐—ฒ ๐—ฎ๐˜‚๐˜๐—ผ๐—บ๐—ฎ๐˜๐—ถ๐—ฐ๐—ฎ๐—น๐—น๐˜† ๐—ฒ๐—น๐—ถ๐—ด๐—ถ๐—ฏ๐—น๐—ฒ ๐˜„๐—ต๐—ฒ๐—ป ๐—ป๐—ฒ๐˜„ ๐—ด๐—ถ๐˜ƒ๐—ฒ๐—ฎ๐˜„๐—ฎ๐˜†๐˜€ ๐—ฎ๐—ฟ๐—ฒ ๐—ฎ๐—ป๐—ป๐—ผ๐˜‚๐—ป๐—ฐ๐—ฒ๐—ฑ.

Alongside in-depth reporting, long-form analysis, and expedition coverage, this is one more way weโ€™re building a stronger connection with the technical diving community.

๐Ÿ”— Subscribe for FREE โ€” https://indepthmag.com/subscribe/

12/13/2025

๐—ช๐—ต๐—ฎ๐˜ ๐——๐—ผ๐—ฒ๐˜€ ๐—˜๐˜…๐—ฝ๐—ฒ๐—ฑ๐—ถ๐˜๐—ถ๐—ผ๐—ป-๐—ฆ๐—ฐ๐—ฎ๐—น๐—ฒ ๐—–๐—ฎ๐˜ƒ๐—ฒ ๐——๐—ถ๐˜ƒ๐—ถ๐—ป๐—ด ๐—Ÿ๐—ผ๐—ผ๐—ธ ๐—Ÿ๐—ถ๐—ธ๐—ฒ ๐—ถ๐—ป ๐Ÿฎ๐Ÿฌ๐Ÿฎ๐Ÿ“?

๐˜๐˜ช๐˜จ๐˜ฉ ๐˜ข๐˜ฃ๐˜ฐ๐˜ท๐˜ฆ ๐˜–๐˜ข๐˜น๐˜ข๐˜ค๐˜ขโ€™๐˜ด ๐˜ญ๐˜ฐ๐˜ธ๐˜ญ๐˜ข๐˜ฏ๐˜ฅ๐˜ด, ๐˜ฃ๐˜ฆ๐˜ฏ๐˜ฆ๐˜ข๐˜ต๐˜ฉ ๐˜ต๐˜ฉ๐˜ฆ ๐˜ช๐˜ด๐˜ฐ๐˜ญ๐˜ข๐˜ต๐˜ฆ๐˜ฅ ๐˜ฑ๐˜ญ๐˜ข๐˜ต๐˜ฆ๐˜ข๐˜ถ ๐˜ฐ๐˜ง ๐˜Š๐˜ฆ๐˜ณ๐˜ณ๐˜ฐ ๐˜™๐˜ข๐˜ฃ๐˜ฐฬ๐˜ฏ, ๐˜ข ๐˜ด๐˜ฎ๐˜ข๐˜ญ๐˜ญ ๐˜ต๐˜ฆ๐˜ข๐˜ฎ ๐˜ญ๐˜ช๐˜ท๐˜ฆ๐˜ฅ ๐˜ข๐˜ฏ๐˜ฅ ๐˜ธ๐˜ฐ๐˜ณ๐˜ฌ๐˜ฆ๐˜ฅ ๐˜ถ๐˜ฏ๐˜ฅ๐˜ฆ๐˜ณ๐˜จ๐˜ณ๐˜ฐ๐˜ถ๐˜ฏ๐˜ฅโ€”๐˜ณ๐˜ถ๐˜ฏ๐˜ฏ๐˜ช๐˜ฏ๐˜จ 20โ€“24 ๐˜ฉ๐˜ฐ๐˜ถ๐˜ณ ๐˜ฆ๐˜น๐˜ฑ๐˜ญ๐˜ฐ๐˜ณ๐˜ข๐˜ต๐˜ช๐˜ฐ๐˜ฏ ๐˜ค๐˜บ๐˜ค๐˜ญ๐˜ฆ๐˜ด ๐˜ง๐˜ณ๐˜ฐ๐˜ฎ ๐˜ข ๐˜ณ๐˜ช๐˜ท๐˜ฆ๐˜ณ๐˜ด๐˜ช๐˜ฅ๐˜ฆ ๐˜ฃ๐˜ข๐˜ด๐˜ฆ ๐˜ค๐˜ข๐˜ฎ๐˜ฑ ๐˜ข๐˜ฏ๐˜ฅ ๐˜ข ๐˜ด๐˜ถ๐˜ฃ๐˜ฎ๐˜ฆ๐˜ณ๐˜จ๐˜ฆ๐˜ฅ ๐˜ฉ๐˜ข๐˜ฃ๐˜ช๐˜ต๐˜ข๐˜ต ๐˜ข๐˜ต 9 ๐˜ฎ.

๐—ง๐—ต๐—ถ๐˜€ ๐˜„๐—ฎ๐˜€๐—ปโ€™๐˜ ๐—ฎ โ€œ๐—ฝ๐˜‚๐˜€๐—ต ๐—ฑ๐—ถ๐˜ƒ๐—ฒ.โ€ ๐—ง๐—ต๐—ถ๐˜€ ๐˜„๐—ฎ๐˜€ ๐—ฒ๐˜…๐—ฝ๐—ฒ๐—ฑ๐—ถ๐˜๐—ถ๐—ผ๐—ป-๐˜€๐—ฐ๐—ฎ๐—น๐—ฒ ๐—ฐ๐—ฎ๐˜ƒ๐—ฒ ๐—ฑ๐—ถ๐˜ƒ๐—ถ๐—ป๐—ด.
The goal: Uluapan Sump 2โ€”and a clearer picture of how the mountain actually drains.
Most cave systems reveal themselves slowly. Some demand everything at once.

๐—œ๐—™ ๐˜†๐—ผ๐˜‚ ๐—ฐ๐—ผ๐—ป๐˜€๐—ถ๐—ฑ๐—ฒ๐—ฟ ๐˜†๐—ผ๐˜‚๐—ฟ๐˜€๐—ฒ๐—น๐—ณ ๐—ฎ๐—ป ๐—ฎ๐—ฑ๐˜ƒ๐—ฎ๐—ป๐—ฐ๐—ฒ๐—ฑ ๐—ฐ๐—ฎ๐˜ƒ๐—ฒ ๐—ฑ๐—ถ๐˜ƒ๐—ฒ๐—ฟ, ๐˜๐—ต๐—ถ๐˜€ ๐—ถ๐˜€ ๐—ฟ๐—ฒ๐—พ๐˜‚๐—ถ๐—ฟ๐—ฒ๐—ฑ ๐—ฟ๐—ฒ๐—ฎ๐—ฑ๐—ถ๐—ป๐—ด.
Read the full expedition report and see how modern cave exploration really happens.

By Osama Gobara and Mauro Bordignon
Photos by Katie Graham, Bryan Lee, Osama Gobara

https://indepthmag.com/the-hidden-schooner-unearthing-history-in-the-depths-of-lake-ontario/

๐—ง๐—ต๐—ฒ ๐Ÿฎ๐Ÿฌ๐Ÿฎ๐Ÿฒ ๐—œ๐—ป๐——๐—ฒ๐—ฝ๐˜๐—ต ๐—ฅ๐—ฒ๐—ฏ๐—ฟ๐—ฒ๐—ฎ๐˜๐—ต๐—ฒ๐—ฟ ๐—š๐˜‚๐—ถ๐—ฑ๐—ฒ: ๐—ช๐—ต๐—ฒ๐—ฟ๐—ฒ ๐—œ๐—ป๐—ป๐—ผ๐˜ƒ๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐— ๐—ฒ๐—ฒ๐˜๐˜€ ๐—›๐—ถ๐˜€๐˜๐—ผ๐—ฟ๐˜†Ready to Master the Next Stage of Your CCR Progression?...
12/12/2025

๐—ง๐—ต๐—ฒ ๐Ÿฎ๐Ÿฌ๐Ÿฎ๐Ÿฒ ๐—œ๐—ป๐——๐—ฒ๐—ฝ๐˜๐—ต ๐—ฅ๐—ฒ๐—ฏ๐—ฟ๐—ฒ๐—ฎ๐˜๐—ต๐—ฒ๐—ฟ ๐—š๐˜‚๐—ถ๐—ฑ๐—ฒ: ๐—ช๐—ต๐—ฒ๐—ฟ๐—ฒ ๐—œ๐—ป๐—ป๐—ผ๐˜ƒ๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐— ๐—ฒ๐—ฒ๐˜๐˜€ ๐—›๐—ถ๐˜€๐˜๐—ผ๐—ฟ๐˜†
Ready to Master the Next Stage of Your CCR Progression?
๐—ง๐—ต๐—ฒ ๐Ÿฎ๐Ÿฌ๐Ÿฎ๐Ÿฒ ๐—œ๐—ป๐——๐—ฒ๐—ฝ๐˜๐—ต ๐—ฅ๐—ฒ๐—ฏ๐—ฟ๐—ฒ๐—ฎ๐˜๐—ต๐—ฒ๐—ฟ ๐—š๐˜‚๐—ถ๐—ฑ๐—ฒ provides a precise, structured overview of todayโ€™s most relevant CCR systems so you can make informed, mission-driven decisions about the gear you rely on.

If youโ€™re aiming for longer runtimes, refined gas efficiency, and equipment choices that genuinely support advanced objectives, this guide will stand out immediately. It speaks directly to divers who want clarity, depth, and real operational insight โ€” not marketing spin.
๐—ช๐—ต๐˜† ๐—œ๐˜ ๐— ๐—ฎ๐˜๐˜๐—ฒ๐—ฟ๐˜€:
๐Ÿ“Œ Each rebreather category โ€” backmount, sidemount, and frontmount โ€” is presented with clear specifications and practical considerations.
๐Ÿ“Œ Legacy and discontinued systems are included for context, giving you a full view of how CCR design has evolved.
๐Ÿ“Œ With the cost of helium stabilizing but still significant, efficiency and redundancy remain critical for extended-range planning.
๐Ÿ‘‰ ๐—ฅ๐—ฒ๐—ฎ๐—ฑ ๐—บ๐—ผ๐—ฟ๐—ฒ ๐—ฎ๐—ป๐—ฑ ๐˜€๐˜๐—ฟ๐—ฒ๐—ป๐—ด๐˜๐—ต๐—ฒ๐—ป ๐˜†๐—ผ๐˜‚๐—ฟ ๐˜๐—ฒ๐—ฐ๐—ต๐—ป๐—ถ๐—ฐ๐—ฎ๐—น ๐—ฑ๐—ฒ๐—ฐ๐—ถ๐˜€๐—ถ๐—ผ๐—ป-๐—บ๐—ฎ๐—ธ๐—ถ๐—ป๐—ด: https://indepthmag.com/holiday-rebreather-guide-2024/

Your dive planning deserves information you can trust.

Original (2020) by Michael Menduno, Amanda White, and Kenzie Potter. Subsequent yearly updates by M. Menduno and Stratis Kas. Lead image: Jรฉrรดme Descamps on the rebreather, quarry of Vodelรฉe, Belgium, photographed by Laurent Miroult.

Photo by Valentina Cucchiara, Laurent Miroult.

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๐—˜๐—ถ๐—ด๐—ต๐˜ ๐—›๐—ผ๐˜‚๐—ฟ๐˜€ ๐—ฎ๐˜ ๐Ÿญ.๐Ÿฏ: ๐—›๐—ผ๐˜„ ๐—ฆ๐—ฐ๐—ถ๐—ฒ๐—ป๐—ฐ๐—ฒ ๐—–๐—ฎ๐˜‚๐—ด๐—ต๐˜ ๐—จ๐—ฝ ๐˜„๐—ถ๐˜๐—ต ๐˜๐—ต๐—ฒ ๐—ช๐—ฎ๐˜† ๐—ช๐—ฒ ๐—”๐—ฐ๐˜๐˜‚๐—ฎ๐—น๐—น๐˜† ๐——๐—ถ๐˜ƒ๐—ฒEver wondered if the 1.3 PPOโ‚‚ โ€œsafety ceilingโ€ fo...
12/10/2025

๐—˜๐—ถ๐—ด๐—ต๐˜ ๐—›๐—ผ๐˜‚๐—ฟ๐˜€ ๐—ฎ๐˜ ๐Ÿญ.๐Ÿฏ: ๐—›๐—ผ๐˜„ ๐—ฆ๐—ฐ๐—ถ๐—ฒ๐—ป๐—ฐ๐—ฒ ๐—–๐—ฎ๐˜‚๐—ด๐—ต๐˜ ๐—จ๐—ฝ ๐˜„๐—ถ๐˜๐—ต ๐˜๐—ต๐—ฒ ๐—ช๐—ฎ๐˜† ๐—ช๐—ฒ ๐—”๐—ฐ๐˜๐˜‚๐—ฎ๐—น๐—น๐˜† ๐——๐—ถ๐˜ƒ๐—ฒ
Ever wondered if the 1.3 PPOโ‚‚ โ€œsafety ceilingโ€ for technical diving was actually built on shaky ground?

Because of fresh science & real-world data, 1.3 ATA may no longer be a conservative โ€œceilingโ€ โ€” it could become your new baseline for long, deep dives.

For decades, these old O2 limits as gospel โ€” the red-line beyond which CNS-oxygen toxicity loomed. But what if that line was drawn on assumptions, not evidence?

The new landmark study by a team led by Simon Mitchell shows that working dives of four hours at 1.3 ATA followed by four hours of decompression appear to carry an acceptably low risk of CNS oxygen toxicity โ€” at least far lower than we once believed.

That doesnโ€™t mean zero risk. โ€œAcceptableโ€ doesnโ€™t equal โ€œsafe enough to ignore.โ€ But for technical divers โ€” cave explorers, wreck hunters, rebreather masters โ€” this recalibration could change the game. Donโ€™t scroll by this if you plan deep work this season. Want to see the data that could change your dive-profile?

๐—ฅ๐—ฒ๐—ฎ๐—ฑ ๐—บ๐—ผ๐—ฟ๐—ฒ โ†’ https://indepthmag.com/eight-hours-at-1-3-how-science-caught-up-with-the-way-we-actually-dive/

Exclusive Interview with Dr. Simon Mitchell by Stratis Kas

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๐—–๐—ฎ๐˜ƒ๐—ฒ ๐——๐—ถ๐˜ƒ๐—ถ๐—ป๐—ด ๐—ฎ๐˜ ๐—œ๐˜๐˜€ ๐—ฃ๐˜‚๐—ฟ๐—ฒ๐˜€๐˜: ๐—˜๐˜…๐—ฝ๐—น๐—ผ๐—ฟ๐—ฒ ๐— ๐—ฎ๐—ฑ๐—ฎ๐—ด๐—ฎ๐˜€๐—ฐ๐—ฎ๐—ฟ ๐—ช๐—ถ๐˜๐—ต ๐—”๐˜…๐—ผ๐—น๐—ผ๐˜ ๐——๐—ถ๐˜ƒ๐—ถ๐—ป๐—ด ๐—˜๐˜…๐—ฝ๐—ฒ๐—ฑ๐—ถ๐˜๐—ถ๐—ผ๐—ป๐˜€What would it feel like to explore underwate...
12/08/2025

๐—–๐—ฎ๐˜ƒ๐—ฒ ๐——๐—ถ๐˜ƒ๐—ถ๐—ป๐—ด ๐—ฎ๐˜ ๐—œ๐˜๐˜€ ๐—ฃ๐˜‚๐—ฟ๐—ฒ๐˜€๐˜: ๐—˜๐˜…๐—ฝ๐—น๐—ผ๐—ฟ๐—ฒ ๐— ๐—ฎ๐—ฑ๐—ฎ๐—ด๐—ฎ๐˜€๐—ฐ๐—ฎ๐—ฟ ๐—ช๐—ถ๐˜๐—ต ๐—”๐˜…๐—ผ๐—น๐—ผ๐˜ ๐——๐—ถ๐˜ƒ๐—ถ๐—ป๐—ด ๐—˜๐˜…๐—ฝ๐—ฒ๐—ฑ๐—ถ๐˜๐—ถ๐—ผ๐—ป๐˜€
What would it feel like to explore underwater cave systems only recently mapped and still barely understood?โ€
Itโ€™s stepping into a world that time forgot โ€” massive tunnels, ghostly white limestone galleries, fossilโ€‘strewn floors, and water so clear it almost feels like air. Every fin kick is both discovery and test of skill, in spaces almost no one has seen. Adrenaline, awe, and the quiet thrill of true exploration all at once.

This is full-scale expedition mode: remote tracks, village welcomes, prehistoric animal remains, and passages that redefine โ€œexploration diving.โ€ Logistics and safety run like a military-grade project โ€” for serious CCR and sidemount divers ready for real depth, real planning, real discovery.

2026 expeditions are nearly full. Claim your place before someone else does:
https://indepthmag.com/cave-diving-at-its-purest-explore-madagascar-with-axolot-diving-expeditions/

Lead image: photo by Phillip Lehman

๐—ง๐—ต๐—ฒ ๐—›๐—ถ๐—ฑ๐—ฑ๐—ฒ๐—ป ๐—ฆ๐—ฐ๐—ต๐—ผ๐—ผ๐—ป๐—ฒ๐—ฟ: ๐—จ๐—ป๐—ฒ๐—ฎ๐—ฟ๐˜๐—ต๐—ถ๐—ป๐—ด ๐—›๐—ถ๐˜€๐˜๐—ผ๐—ฟ๐˜† ๐—ถ๐—ป ๐˜๐—ต๐—ฒ ๐——๐—ฒ๐—ฝ๐˜๐—ต๐˜€ ๐—ผ๐—ณ ๐—Ÿ๐—ฎ๐—ธ๐—ฒ ๐—ข๐—ป๐˜๐—ฎ๐—ฟ๐—ถ๐—ผHave you ever imagined exploring a nearly intact 19...
12/07/2025

๐—ง๐—ต๐—ฒ ๐—›๐—ถ๐—ฑ๐—ฑ๐—ฒ๐—ป ๐—ฆ๐—ฐ๐—ต๐—ผ๐—ผ๐—ป๐—ฒ๐—ฟ: ๐—จ๐—ป๐—ฒ๐—ฎ๐—ฟ๐˜๐—ต๐—ถ๐—ป๐—ด ๐—›๐—ถ๐˜€๐˜๐—ผ๐—ฟ๐˜† ๐—ถ๐—ป ๐˜๐—ต๐—ฒ ๐——๐—ฒ๐—ฝ๐˜๐—ต๐˜€ ๐—ผ๐—ณ ๐—Ÿ๐—ฎ๐—ธ๐—ฒ ๐—ข๐—ป๐˜๐—ฎ๐—ฟ๐—ถ๐—ผ
Have you ever imagined exploring a nearly intact 19th-century schoonerโ€ฆ ๐Ÿต๐Ÿฌ ๐—บ down in freezing ๐—Ÿ๐—ฎ๐—ธ๐—ฒ ๐—ข๐—ป๐˜๐—ฎ๐—ฟ๐—ถ๐—ผ โ€” before it vanishes forever?

Because that wreck โ€” masts upright, cabin intact, rigging made of rope โ€” just surfaced from sonar as one of the rarest and best-preserved deep-water finds of our generation.

Imagine descending into green gloom, following a shotline past 60 m until a mast pierces the darkness. Below lies a wooden schooner that went down more than a century ago โ€” still upright, still coherent, just waiting for someone to decode its secrets. This is not a tourist dive. This is history suspended in cold, silent water. It is a time capsule from the early 1800s, preserved far from salvage, human interference, or decayโ€ฆ โ€”but slowly being eaten by invasive quagga mussels.
For maritime archaeologists itโ€™s a dream. For serious technical divers itโ€™s a call to arms: meticulous planning, impeccable trimix, perfect gas management, long bottom times, and a chance to bear witness to a forgotten era of sail and wood.

If you ever wanted a โ€œonce-in-a-careerโ€ dive โ€” this could be it. And when time is running out, hesitation is surrender.

Curious how the team reached 90 m, what they saw, and why this wreck could rewrite the history of Great Lakes shipbuilding? Read more โ€” before the water claims it for good.

by Heison Chak and James Conolly, photographed by Jeff Lindsay, Evgenii Zlochevskii

๐Ÿ‘‰https://indepthmag.com/into-the-depths-exploring-a-lost-schooner-beneath-lake-ontario/

๐—œ๐—ก๐——๐—˜๐—ฃ๐—ง๐—› ๐Ÿญ๐Ÿฎ-๐— ๐—ผ๐—ป๐˜๐—ต ๐—ฅ๐—ฒ๐—ฐ๐—ฎ๐—ฝ!Our December launch ๐™ฌ๐™–๐™จ ๐™– ๐™—๐™ก๐™–๐™จ๐™ฉ โ€” we hit 4,500 unique readers on day one!๐—ข๐˜‚๐—ฟ ๐— ๐—ผ๐˜€๐˜-๐—ฅ๐—ฒ๐—ฎ๐—ฑ ๐—™๐—ฒ๐—ฎ๐˜๐˜‚๐—ฟ๐—ฒ๐˜€ ๐—ผ...
12/06/2025

๐—œ๐—ก๐——๐—˜๐—ฃ๐—ง๐—› ๐Ÿญ๐Ÿฎ-๐— ๐—ผ๐—ป๐˜๐—ต ๐—ฅ๐—ฒ๐—ฐ๐—ฎ๐—ฝ!
Our December launch ๐™ฌ๐™–๐™จ ๐™– ๐™—๐™ก๐™–๐™จ๐™ฉ โ€” we hit 4,500 unique readers on day one!

๐—ข๐˜‚๐—ฟ ๐— ๐—ผ๐˜€๐˜-๐—ฅ๐—ฒ๐—ฎ๐—ฑ ๐—™๐—ฒ๐—ฎ๐˜๐˜‚๐—ฟ๐—ฒ๐˜€ ๐—ผ๐—ณ ๐˜๐—ต๐—ฒ ๐—ฃ๐—ฎ๐˜€๐˜ ๐—ฌ๐—ฒ๐—ฎ๐—ฟ:

1. As expected, our brand-new Rebreather Guide takes the #1 spot! โ€” and weโ€™re thrilled to see how many of you dove into it!

2. โ€œWas Sheck Wrong?โ€ by me.

3. Patrick Widmannโ€™s review of the KISS Sidewinder 2

4. Dr. Harrisโ€™s โ€œDeeperโ€ continues to spark thoughtful discussions

5. The TALKS: Cardiac Risk & Bubble Dynamics

๐Ÿ™ Thank you, everyone!
What an incredible spread of interests โ€” your curiosity, passion, and support keep driving us forward. Hereโ€™s to another year of exploration, learning, and great conversations!

๐—œ๐—ป๐˜€๐—ถ๐—ฑ๐—ฒ ๐—•๐—ฟ๐—ถ๐˜๐—ฎ๐—ป๐—ป๐—ถ๐—ฐ: ๐—ฃ๐—ฒ๐—ฟ๐—บ๐—ถ๐˜๐˜€, ๐—ฃ๐—ผ๐—น๐—ถ๐˜๐—ถ๐—ฐ๐˜€, ๐—ฎ๐—ป๐—ฑ ๐˜๐—ต๐—ฒ ๐—ฃ๐—ต๐˜†๐˜€๐—ถ๐—ฐ๐˜€ ๐—ผ๐—ณ ๐—ฎ ๐Ÿญ๐Ÿฎ๐Ÿฌ-๐— ๐—ฒ๐˜๐—ฒ๐—ฟ ๐— ๐—ถ๐˜€๐˜€๐—ถ๐—ผ๐—ป๐˜ž๐˜ฉ๐˜ข๐˜ต ๐˜ฌ๐˜ช๐˜ฏ๐˜ฅ ๐˜ฐ๐˜ง ๐˜ฅ๐˜ช๐˜ท๐˜ฆ๐˜ณ ๐˜ค๐˜ฉ๐˜ฐ๐˜ฐ๐˜ด๐˜ฆ๐˜ด ๐˜ต๐˜ฐ ๐˜ฅ๐˜ฆ๐˜ด๐˜ค๐˜ฆ๐˜ฏ๐˜ฅ 120 ๐˜ฎ๐˜ฆ๐˜ต...
12/06/2025

๐—œ๐—ป๐˜€๐—ถ๐—ฑ๐—ฒ ๐—•๐—ฟ๐—ถ๐˜๐—ฎ๐—ป๐—ป๐—ถ๐—ฐ: ๐—ฃ๐—ฒ๐—ฟ๐—บ๐—ถ๐˜๐˜€, ๐—ฃ๐—ผ๐—น๐—ถ๐˜๐—ถ๐—ฐ๐˜€, ๐—ฎ๐—ป๐—ฑ ๐˜๐—ต๐—ฒ ๐—ฃ๐—ต๐˜†๐˜€๐—ถ๐—ฐ๐˜€ ๐—ผ๐—ณ ๐—ฎ ๐Ÿญ๐Ÿฎ๐Ÿฌ-๐— ๐—ฒ๐˜๐—ฒ๐—ฟ ๐— ๐—ถ๐˜€๐˜€๐—ถ๐—ผ๐—ป
๐˜ž๐˜ฉ๐˜ข๐˜ต ๐˜ฌ๐˜ช๐˜ฏ๐˜ฅ ๐˜ฐ๐˜ง ๐˜ฅ๐˜ช๐˜ท๐˜ฆ๐˜ณ ๐˜ค๐˜ฉ๐˜ฐ๐˜ฐ๐˜ด๐˜ฆ๐˜ด ๐˜ต๐˜ฐ ๐˜ฅ๐˜ฆ๐˜ด๐˜ค๐˜ฆ๐˜ฏ๐˜ฅ 120 ๐˜ฎ๐˜ฆ๐˜ต๐˜ฆ๐˜ณ๐˜ด ๐˜ช๐˜ฏ๐˜ต๐˜ฐ ๐˜ข ๐˜ด๐˜ฉ๐˜ช๐˜ฑ ๐˜ต๐˜ฉ๐˜ข๐˜ต ๐˜ฉ๐˜ข๐˜ด ๐˜ฃ๐˜ฆ๐˜ฆ๐˜ฏ ๐˜ธ๐˜ข๐˜ช๐˜ต๐˜ช๐˜ฏ๐˜จ ๐˜ช๐˜ฏ ๐˜ต๐˜ฉ๐˜ฆ ๐˜ฅ๐˜ข๐˜ณ๐˜ฌ ๐˜ง๐˜ฐ๐˜ณ ๐˜ฎ๐˜ฐ๐˜ณ๐˜ฆ ๐˜ต๐˜ฉ๐˜ข๐˜ฏ ๐˜ข ๐˜ค๐˜ฆ๐˜ฏ๐˜ต๐˜ถ๐˜ณ๐˜บ?
The kind who understands exactly what is asked of them at that depth โ€” and answers without hesitation.

๐—•๐—ฟ๐—ถ๐˜๐—ฎ๐—ป๐—ป๐—ถ๐—ฐ ๐—ถ๐˜€ ๐—ป๐—ผ ๐—ผ๐—ฟ๐—ฑ๐—ถ๐—ป๐—ฎ๐—ฟ๐˜† ๐˜„๐—ฟ๐—ฒ๐—ฐ๐—ธ.
She is enormous, intact, and resting in a place where every decision is binding. A shipping lane above. A 120-meter descent below. Zero-bubble CCR mandatory. Permits guarded by archaeology, not tourism. This is a dive where planning becomes scripture and ex*****on becomes truth.

The ๐Ÿฎ๐Ÿฌ๐Ÿฎ๐Ÿฑ ๐—บ๐—ถ๐˜€๐˜€๐—ถ๐—ผ๐—ป wasnโ€™t adventure โ€” it was obligation. A government-authorized recovery where every artifact had to be earned: slow, deliberate pe*******on; controlled lifts; ascent lines held with the steadiness of surgical hands.

๐—œ๐—ป๐˜€๐—ถ๐—ฑ๐—ฒ, the wreck feels alive. Steel corridors breathe silt at the slightest fin pivot. Machinery rooms swallow light. Hospital wards echo with the dull weight of water pressing from all sides. There are no reliable diagrams to trust โ€” only discipline, team coherence, and the ability to keep your pulse steady when the environment whispers otherwise.

For technical divers, ๐—•๐—ฟ๐—ถ๐˜๐—ฎ๐—ป๐—ป๐—ถ๐—ฐ ๐—ถ๐˜€ ๐—ฎ ๐—ฟ๐—ฒ๐—บ๐—ถ๐—ป๐—ฑ๐—ฒ๐—ฟ: true depth is not measured in meters, but in how completely you must rely on training, on protocols, and on the diver beside you.

๐—œ๐—ณ ๐˜†๐—ผ๐˜‚ ๐˜„๐—ฎ๐—ป๐˜ ๐˜๐—ผ ๐˜‚๐—ป๐—ฑ๐—ฒ๐—ฟ๐˜€๐˜๐—ฎ๐—ป๐—ฑ ๐˜„๐—ต๐—ฎ๐˜ ๐—ฎ ๐Ÿญ๐Ÿฎ๐Ÿฌ-๐—บ๐—ฒ๐˜๐—ฒ๐—ฟ ๐—–๐—–๐—ฅ ๐—ผ๐—ฝ๐—ฒ๐—ฟ๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐—ฟ๐—ฒ๐—ฎ๐—น๐—น๐˜† ๐—ฑ๐—ฒ๐—บ๐—ฎ๐—ป๐—ฑ๐˜€ โ€” ๐—ฟ๐—ฒ๐—ฎ๐—ฑ ๐˜๐—ต๐—ฒ ๐—ณ๐˜‚๐—น๐—น ๐—ฟ๐—ฒ๐—ฝ๐—ผ๐—ฟ๐˜, ๐˜„๐—ต๐—ฒ๐—ฟ๐—ฒ ๐—ฆ๐˜๐—ฟ๐—ฎ๐˜๐—ถ๐˜€ ๐—ž๐—ฎ๐˜€ ๐˜€๐—ถ๐˜๐˜€ ๐—ฑ๐—ผ๐˜„๐—ป ๐˜„๐—ถ๐˜๐—ต ๐—ฅ๐—ถ๐—ฐ๐—ต๐—ถ๐—ฒ ๐—ž๐—ผ๐—ต๐—น๐—ฒ๐—ฟ ๐˜๐—ผ ๐˜‚๐—ป๐—ฝ๐—ฎ๐—ฐ๐—ธ ๐˜๐—ต๐—ฒ ๐—บ๐—ถ๐˜€๐˜€๐—ถ๐—ผ๐—ป ๐—ถ๐—ป ๐—ฑ๐—ฒ๐—ฝ๐˜๐—ต.

๐Ÿ‘‰ https://indepthmag.com/inside-britannic-permits-politics-and-the-physics-of-a-120-meter-mission/

Richie Kohler featured in the lead image (photo by Evan Kovacs).
Additional images by Richie Kohler, Barry McGill, and Richie Stevenson.

Gear anyone? Follow the project with Tamara Adame!
12/05/2025

Gear anyone? Follow the project with Tamara Adame!

When youโ€™re part of an exceptional project like The Vanilla Farm Project, you know youโ€™re exactly where youโ€™re meant to be.

team: Cenote Girl - Cave Diving Instructor Mexico | Jack Riff
photo: Dive Wells photography

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