Great Blue Wild, Palau Shark Sanctuary

S2 E1 • 46m • 4K UHDHDPG

A tiny ocean community, Cabo Pulmo is a remarkable story of recovery. After reckless over-fishing, this beautiful coral reef has now been restored once again.

S2 E2 • 46m • 4K UHDHDPG

Palau is a tiny country with a big story. In 2009, this island nation in the Pacific Ocean created the world's first shark sanctuary, to protect over 100 species.

S2 E3 • 46m • 4K UHDHDPG

In Palau, the local economy relies heavily on eco-tourism. But the country is fighting a hard battle against man-made environmental destruction.

S2 E4 • 46m • 4K UHDHDPG

The vibrant reef ecosystem of Raja Ampat is twice the size of Singapore. See how the mysterious manta ray lives in these waters.

S2 E5 • 46m • 4K UHDHDPG

The Indonesian archipelago lies in the heart of the Coral Triangle, an area recognised worldwide as the centre of marine biodiversity.

S2 E6 • 46m • 4K UHDHDPG

Step into the waters surrounding Indonesia's sprawling archipelago, home to the world's richest reefs and its highest marine biodiversity.

S2 E7 • 46m • 4K UHDHDPG

The world-famous Maldives face an uncertain future, as rising sea levels threaten to wipe out this tiny island nation. What can be done?

S2 E8 • 46m • 4K UHDHDPG

The Pacific coast of Costa Ricahosts nearly 5,000 species of marine life. But in this undersea jungle, the apex predator sharks are at risk.