Traditional island of stone money and reefs.
Reliable manta-ray cleaning stations.
Coral dive site of mushroom-shaped formations.
Some of the world's richest reef waters.
Untouched Red Sea reefs and islands.
Coral heads and reef fish in a lagoon 40 km across, with WWII wrecks off the atoll edge.
Long protected reef off Antigua's south coast.
Hundreds of mantas feed in this tiny bay during the monsoon plankton blooms.
Plankton light the surf electric blue on Vaadhoo and other islands on dark nights.
World-class reef diving off Roatan.
Aquarium and science museum on the bay.
Shark dives in a vast lagoon.
Grand clifftop aquarium and museum.
Dive with whale sharks and mantas.
Reefs Cousteau chose for his underwater village, with hammerheads at Sha’ab Rumi and almost no other divers.
Indian Ocean islands and sandbars.
The largest reef in the northern hemisphere: nurse sharks and rays at Hol Chan, turtles and 500 species of fish.
Cave reef made famous by James Bond.
Current-swept island reefs at the mouth of the Red Sea.
Paddle a protected chain of uninhabited cays over impossibly clear water.
Plunge into a deep ocean sinkhole off Andros.
Clear Caribbean sinkholes and reef right off the shore at Playa Giron.
Fringing reef in Western Australia where whale sharks cruise close to shore.
Visit remote California islands with sea caves, kelp forests, wildlife, and rugged coastlines.
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