In the last ten years the diving world has blossomed, in a way even its ambitious pioneer Jacques Cousteau might not have predicted.

The Deepblu app now supports several features that help dive pros connect with their students, like the ability to validate training logs through the app.

Watch as this hungry sea turtle snacks on a jellyfish, slurping its tentacles like spaghetti.

Draped in a vibrant mix of soft corals and sponges, patrolled by an array of pelagic predators, home to some fish species found nowhere else on earth, and the resting place of world-class wrecks, the reefs and pinnacles of the Red Sea are the stuff of legend.

Why did UNESCO choose Cocos Island National Park as a World Heritage Site? It is the only island in the tropical eastern Pacific, and it provides critical marine habitats — deep waters pumped with nutrients from life-giving currents — for large pelagic fish, including the planet’s biggest — the whale shark — as well as schools of hammerhead sharks, yellowfin tuna and manta rays.

Storms keep getting stronger. Their aftermath gets worse. But the question stays the same: Why aren’t we prepared?

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Nearest Point is a diverse, kaleidoscopic reef.

Drifting in the cobalt blue waters of Molasses Reef a diver notices something odd: On the underside of the Cheeca View (the dive boat he'd just been relaxing on), the letters HD had been painted in white on either side of the hull.