The use of trimix, that is a breathing mix of oxygen, helium and nitrogen has become the standard for dives beyond 30-50m/100-165 ft, depending on who...
Compared to Frenzel equalization used by freedivers, Valsalva equalization can be hard on the ears and eustachian tubes, and could cause problems for tech divers with...
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...
Is it possible to make a career as a tech diving instructor? How about if you have a couple of instructor trainer credentials to boot? Here...
Are you able to calculate your decompression for a 40-50m/130-165 ft dive using only your average depth and bottom time? Here British techmeister Rich Walker further...
Tech instructor and musico Francesco Cameli reports on a recent team dive traversing the two humongous rocks that bookmark the San Pedro Channel, max depth 70m/230...
The third installment of our historical wreck series brought to you by shipwreck diving travel specialists at Dirty Dozen Expeditions. Are you ready to make the...
Condom caths and p-valves are arguably the best way to go for male techies, until they’re NOT. Here InDEPTH editor-in-chief Michael Menduno goes old school to...
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...
Veteran magazine editor/designer and wreck diver Jesper Kjøller, who grew up on the Baltic, examines what is arguably the most extravagant and uncompromising wreck photo book...