These idyllic treasure islands are world-renowned among sailors, but they also offer an underwater diversity that only divers can appreciate.

They've been called many things through the centuries--Atlantis, Elysian Fields, the seven roses of the Atlantic--but today the Canary Islands are calling to divers everywhere.

Stepping out of Grand Cayman's shadow, Cayman Brac and Little Cayman earn top honors from readers for great diving, laid-back resorts and "to-die-for desserts."

All you need to know to be an instant expert.

Hurricane Wilma roared across Cozumel last fall, but the island has made a stunning recovery. And under water, its reefs, caves and high-speed drift dives are better than ever.

Searching for the best diving in the DR? You'll find it here.

With vast walls, glittering bays and a quartet of idyllic mini-islands, Puerto Rico offers la vida loca under the waves.

Between Cozumel and Belize there's an atoll that's made for divers--and you've never heard of it. Got your attention?

Why fly halfway around the world when you can find feisty great whites just south of the border--and just off California.