After unleashing the most powerful weapons in history at the end of World War II, the U.S. military needed more data. Today, the Pacific atoll where it tested its doomsday bombs is a Holy Grail for divers.

New artificial reefs, or shipwrecks, for scuba divers to keep on their radar.

Shark dives, barrier islands, mantas and fields of soft coral are all the stuff of a Fijian holiday, making it a longtime favorite of divers. But do your homework.

Spectacular big animals, idyllic atolls and sumptuous luxury are the key words that define a dive vacation to the Maldives, an unforgettable Indian Ocean island country.

Tons of big animals, endemic fish and macro life make every dive in Hawaii come abundantly alive.

The best scuba diving in Alaska and where you can stay for the best adventure vacation in Alaska.

Sheer walls, shallow beginner sites and a wealth of marine life rank the budget‑friendly Bay Islands as a perennial Caribbean diving favorite.

The liveaboard *Aqua Cat* takes scuba divers to the best dive sites in the Bahamas and offers topside adventure along the way.

The 10 best things to do for those traveling to go scuba diving in Cozumel.