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Training

Penetrating Questions

When diving a wreck, should you go inside? Not without proper training.

The Search for the Perfect Gas

Should you breathe air, nitrox or trimix? It depends on the dive. See how nitrox and trimix stack up against the stuff you're used to inhaling.

Should You Go Solo?

It may be your ticket to underwater freedom.

Adventures in Live-aboard Diving

Make your next dive cruise your best vacation ever.

The Edge: The World's Most Epic Dives and Their Scuba Pioneers

The hottest, coldest, longest, deepest and highest dives in the world. The world's superlative sites and the people who pioneered them.

Rebreathers 101

Our technical editor confronts myths about rebreathers and argues that semi-closed systems make sense for recreational divers.

Make the Most of Every Tank

Does your tank have enough air for your next dive? Find out.

The Art of Escape

Wreck diving skills Houdini would love.

Dive Deeper, Stay Longer

Decompression diving can take you to greater depths, and your skills to a whole new level. Are you ready to push the limits?