Devil’s Den Prehistoric Spring is the kind of place that makes you wonder what else might be hiding beneath Florida’s surface, and whether we should be checking under more hills just to see what we ...

Unknown to many, this is Florida International University’s Aquarius Reef Base — the centerpiece of FIU's Medina Aquarius ...

Most travelers come to Florida with a familiar checklist: beaches, theme parks, cotton-candy sunsets, a weeklong escape into ...

But once your vision adapts, you see this impossibly blue pool of water stretching out before you, surrounded by limestone ...

From fantasy photoshoots in the Maldives, to kelp forest "strolls" along California's Catalina Island and Taiwan's luxe hotel swims, swimming in a tail is different wherever you do it.

The fate of one of the last thriving coral reefs in Florida may be imperiled by plans to widen the shipping channel leading into Port Everglades.

Discover underrated Florida state parks with waterfalls, fossils, wildlife, and hidden trails that reveal the Sunshine State’s wild and peaceful side.

Archaeologists have found a prehistoric human skeleton deep inside a flooded cave system on Mexico’s Caribbean coast.

Matthew Smith's capture of two sea lions in the Falkland Islands earns him to the Underwater Photographer of the Year award.

The annual competition draws thousands of entries from across the world and brings together images from below the water’s surface that show the diversity and challenges of subaquatic life ...

Nestled in Florida's panhandle is this charming small town, where you can hike around lakes or do some swimming and diving ...

In 2014, cave diver Ed Sorenson undertook one of the most challenging rescues of his career in the Twin Caves of Jackson County, Florida. This account highlights the perilous conditions faced, the ...