Divers looking for training beyond open-water certification face a dizzying array of options.
The risks of DCS, running low on air and nitrogen narcosis increase as you go deeper. That's why you need our plan.
Thanks to research and equipment advances, today's divers are taught a new set of skills. How up-to-date are you?
Once taboo even to talk about, today proper deco procedures should be part of every diver's skill set.
Proper weighting is a moving target that changes with every dive. Find it with our exclusive buoyancy calculator.
Buoyancy and anti-silt techniques that keep cave and cavern divers floating above trouble.
The hottest, coldest, longest, deepest and highest dives in the world. These are the stories of the world's superlative sites, the people who pioneered them, and how you can follow their lead and find your own adventure.









