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.

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

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.

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

Photography by Nick Lucey

The north shore of Lake Ontario is a charming getaway-and perfect for divers seeking exceptional wreck diving.

Cozumel is full of surprises even for divers who have been there countless times, including newly discovered sites and the margarita-fueled fun of Carnival.