Looking to enjoy a scuba diving holiday in an eco-friendly dive destination? Our readers selected these spots as the world's best.

See why the scuba diving on North America's Pacific coast — from Alaska to Washington to California and Mexico — is among the best in the world.

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Nothing is more fun than diving with a group of playful pinnipeds.

For more than 20 years, Georgienne Bradley has been the motivating force behind countless initiatives to protect the world’s oceans through marine conservation.

Oceana campaign seeks donations to help; decline in sardine fishery being blamed.

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A new technology allows scientists to learn more about enormous underwater avalanches.

Sometimes you need a break from the tank. Here we present the 2017 readers choice awards for best snorkeling destinations.