The best scuba diving in Lake Champlain includes historic wooden shipwrecks.

What it's like to swim with orcas—or killer whales—in Norway's Troms region aboard *Sula* liveaboard.

The Bonaire National Marine Park — which covers the entire coastline from the high-water mark to a depth of 200 feet and a large mangrove forest in Lac Bay — was the first of its kind in the Caribbean.

Scapa Flow in Scotland holds many World War I and World War II shipwrecks for scuba divers to explore.

*Scuba Diving*'s readers made their picks for the best destinations for advanced diving in the world, including Socorro, the Galapagos Islands and Palau.

Plaza Beach Resort Bonaire

Scientists work to protect the World War II shipwrecks of Truk Lagoon and prevent them from releasing contaminants into the water.

Cayman Islands

Once a theater of war, the Solomon Islands offer world-class scuba diving in the South Pacific via the *Bilikiki* liveaboard.