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Liveaboards are essentially mobile hotels that whisk divers away to otherwise hard-to-reach dive spots.

Not many people can say they've been diving out of a cage with great white sharks. These divers had a special encounter with one while diving off Catalina Island, California.

Scuba Diving readers say these are the top destinations to dive with big animals.

Diving alongside playful sea lions can be a thrilling experience. Here's what to expect—and how to snag the best photos.