Great Blue Wild

Dubbed "the most beautiful island in the world" by Jacques Cousteau, Cocos Island is a gem among Costa Rica’s national parks. Explore the area’s hammerhead and Galapagos sharks and meet the large marine species that inhabit these deep waters.

A tiny volcanic archipelago rising from the untamed waters of the eastern Pacific, the Socorro Islands have been called the Mexican Galapagos. Get ready for jaw-dropping encounters with giant Pacific manta rays, dolphins, and white tip reef sharks.

The islands of the Bahamas are ringed with lush coral, underground cave systems, and plunging barrier reefs. Beyond the white sands and turquoise water, marine life abounds: agile reef sharks, large whitetip sharks, manatees, sea turtles, and wild dolphins.

More than 200 caves play host to an unmatched array of marine life and coral formations in an underwater kingdom 40 kilometres from Belize City. Here, a deep blue wilderness brims with rare fish, eagle rays, sharks, and huge green morays.

The Mesoamerican Reef is the largest reef system in the Americas, and home to a range of fish and coral. Boasting sparkling visibility, vivid turquoise waters, and hundreds of miles of mysterious underwater caves, this area is a diver’s dream.

Home to the world’s second-largest barrier reef, Roatán is a top spot for diving. Known mostly for its technicolour coral, Caribbean reef sharks, and invasive lionfish, it also has an unusual draw–a mysterious sunken ghost ship, The Prince Albert.

Researcher Andrea Marshall believes Mozambique-based manta rays may be attending the sardine run on South Africa’s Wild Coast. The question is: why? Follow researchers as they track the creatures to understand their unusual migrating patterns.

Mozambique’s coastline is home to an array of marine life, but no species is safe from overfishing. Join the region’s leading researchers on their journey to find and understand one of the ocean’s most secretive creatures, before it’s too late.

The coast of Mozambique is home to giants, like humpbacks and whale sharks, but the tiniest species play just as big of a role in the ecosystem. Meet the scientists who are working against the clock to protect coastal creatures big and small.

The ocean covers 70 percent of our planet and is home to as many as one million species, but it’s a group of microscopic organisms known as plankton that make the biggest impact. Learn how these tiny drifters help sustain all life on earth.