No wreck is too challenging, no water too murky, no dive too tough for Uncle Sam's elite band of diving rangers.

With some tips from this ancient discipline, the Eagle could replace your octopus.

American divers are making a bigger splash these days. How fat is unfit?

Plus: Diving after a root canal and a cold and flu quiz.

Our dive experts help answer your questions on a variety of topics related to healthy diving.

How to keep your local chiropractor off your back.

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

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.

It may be your ticket to underwater freedom.