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Guide to Diving Oahu's Best Wrecks and Reefs

The weather can't be beat, and the water is crystal-clear. Hawaii's third-largest island is home to some of the world's best diving, offering something for every type of diver.

The Four Kings

Indonesia’s Raja Ampat continues to dazzle divers with the most dizzying biodiversity on the planet

Video: Yosemites of the Sea

Designating Marine Protected Areas off California’s Pacific Coast

Arenui Liveaboard

Diving a Whole New Style. The Arenui liveaboard is a traditional and magnificent Phinisi, a classic Indonesian wooden sailing vessel.

Video: What It's Like...To befriend a sperm whale

I met him 10 years ago off Dominica's coast. His head and dorsal fin were badly cut. As the weeks progressed, our relationship grew. We named him Scar.