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Florida's Crystal River offers big thrills with little effort.

Presenting the 2017 Readers Choice Awards for the best advanced scuba diving in North America.

A voyage aboard Wakatobi's luxury *Pelagian* shows you southeast Sulawesi, Indonesia in style.

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Presenting the 2017 readers choice awards for best overall scuba diving in North America.

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Presenting the 2017 readers choice awards for best overall scuba diving in the Pacific and Indian Ocean.

The best year-round spot to see lemon sharks is Tiger Beach in the Bahamas, but these docile sharks can be found around the world.