Go over the edge with some of the best diving in Puerto Rico.

The sunken wrecks of Lake Huron's Thunder Bay provide a breathtaking thrill--and a moving history lesson.

The scenic wilderness of the Beaver State includes mountains, river gorges and even desert--but diving? Surprised? You shouldn't be.

More than half a century ago, tens of thousands of men paid the ultimate sacrifice in the struggle over Micronesia's islands. Today, wreck divers pay homage in the sacred sunken graveyards of Guam and Palau.

This East Caribbean jewel is one of diving's best-kept secrets, but maybe not for long.

A hot spot for winter sports, northern Utah offers another kind of hot spot for divers-dozens of geothermal springs.

The oil rigs off SoCal's coast are thrilling artificial reefs loaded with marine life.

We could have given you twice as many reasons to scuba dive Belize. This tiny country offers a wealth of dive options-from amazing encounters with whale sharks and dolphins to sublime dives on coral atolls.

Photography by Nick Lucey