This huge ocean sinkhole lies in the heart of Lighthouse Reef, a unique atoll. Here are five fun facts about this bucket-list spot for scuba divers.

Sometimes you need a break from the tank. Here we present the 2017 readers choice awards for best snorkeling destinations.

Presenting the 2017 Readers Choice Awards for the best destination to go scuba diving with big animals in the Caribbean and Atlantic.

Presenting the 2017 readers choice awards for feediving in the world.

You don't have to venture into deep waters to get memorable diving experiences. These locations, chosen by you, offer close-to-shore dive spots worth exploring!

Check out these amazing dive destinations, perfect for underwater photographers and divers who love macro creatures!

Coral-covered underwater walls are some of the coolest dive sites, and are filled with sea creatures big and small. Here are 15 best in the world to go dive!

Where can you dive wish sharks? What about dolphins and sea lions? Here are the best destinations in the world for big-animal encounters, voted by you!

The world's best diving, chosen by you! From the Caribbean and Atlantic to North America to the Pacific and Indian Oceans, here are the top-rated dive sites.