Our coast-to-coast dive guide for the best sites, condition reports, where to stay, and topside adventures.

This one-of-a-kind floating gallery boutique hotel travels to Indonesia’s most exquisitely biodiverse hidden corners.

Warming waters are pushing southern fish to increasingly expand to the Mediterranean’s northern waters.

A repeat diver luxuriates in the lively shallows of the Great Blue Hole, a beautiful side of the site most divers fin straight past.

The Cayman Islands present only opportunities to underwater photographers, which calls for a disciplined approach.

In partnership with the marine exploration nonprofit OceanX, University of Miami scientists using ROVs discovered the massive brine pools more than a mile deep.

Goliath grouper spawning, manatee snorkeling, freshwater springs, shark diving: it's all here, and this is when you can do it.