Advanced Skills

There's more to diving than "60 feet for 30 minutes, back on the boat with 500 psi" if you have the right tools, training and mind-set for the expanding world of recreational tech diving.
Nitrox lets you dive longer and deeper, right? Wrong!
Wreck diving skills Houdini would love.
Does your tank have enough air for your next dive? Find out.
Our technical editor confronts myths about rebreathers and argues that semi-closed systems make sense for recreational divers.
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.
Buoyancy and anti-silt techniques that keep cave and cavern divers floating above trouble.
Make your next dive cruise your best vacation ever.
It may be your ticket to underwater freedom.
Not afraid of the dark, are you? Conquer your fear of night diving with our 12 essential rules for after-hours fun. Plus: Nine nights you'll never forget and four lights you shouldn't dive without.
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