Florida's Crystal River offers big thrills with little effort.

French photographer Greg Lecoeur gave up everything to pursue a life under the sea — his bold move is paying off with multiple awards for his work.

Photography and scuba diving have one thing in common — they're both a lot of fun. These entries into our 2016 underwater photo contest put a smile on our face.

It’s a tropical eastern Pacific island so remote, it seems untouched by time and man, offering underwater thrills unmatched in this hemisphere.

Family week aboard Turks & Caicos Aggressor II is about scuba diving with the people you love.

Fantasy design puts Aquarium in New York City’s East River.

To help make wreck diving safer and more fun, Otto Wagner and Raymond Poudrier began developing detailed underwater maps of wrecks and dive sites.

Tahiti — romantic, beautiful and a diver's paradise — is one of the best places in the world to dive, and is filled with sharks, dolphins, coral reefs and more.

The answer is siphonophores — the glowing underwater creatures you see night diving in Hawaii and Tahiti — and they change the design of underwater propulsion.