This UNESCO World Heritage reef has the world’s largest whale shark aggregation and is home to one of the world’s best shore dives.

Watching the underwater world suffer pushed a diver away from the water—but now scuba might be just what she needs to handle that very sadness.

Bustling reefs and historic wrecks await divers amid the Florida Keys’ marine sanctuaries and state parks.

Steven Schwankert has dove the submerged Ming-era section of the wall 40 times, part of his decades-long love affair with submerged Chinese history.

Splendid wrecks, saltwater lakes, natural cathedrals and more await divers along Croatia’s northern, central and southern coasts.

A survey of more than 60 fishing communities found no confirmed sightings of the mammal, which has lived in Chinese waters for hundreds of years.

it’s difficult to reconcile how the most beautiful things you have ever experienced can be the worst they’ve ever been. But the data is clear—we've lost more than we can imagine.