Stunning underwater video taken from the wildest expeditions of the world's greatest dive shops highlight the ocean's most spectacular species.

Hammerheads, Galapagos sharks, rays, and other species populate the waters of Cocos Island.

The Bahamas are surrounded by coral reefs and underwater caves with sharks, turtles, and dolphins.

Cabo Pulmo is the site of an extraordinary marine recovery.

The island nation of Palau created the first shark sanctuary and the largest marine sanctuary.

Palau is home to large manta rays, WWII wrecks, and a coral reef.