A terrifying moment captured on film of a group of divers coming face-to-face with sharks during a safety stop left viewers ...

Rangiroa is a laid-back island paradise full of underwater wonders, including abundant sharks. It's the largest coral atoll ...

Can a shark survive inside one of the most explosive underwater volcanoes on the planet? Learn about these sharks and their unusual habitat.

Plunge into this deep blue hole and you'll discover ... but it's unlikely you'll encounter many underwater creatures (expect the occasional shark!). Even if you're not a diver, recent visitors ...