Michael Patrick O'Neill has captured amazing photos of leatherback turtles, hammerhead sharks, mating seahorses, many living ...

One writer shares her transformative journey learning to freedive—and the best places around the world to give it a try.

Hawksbill turtle and school of grunts over a coral reef in Cozumel, Mexico. Scuba divers always talk to each other about their favorite dive sites. Egypt? Maldives? French Polynesia? Yes, those ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Marine life is always on ...