Great Blue Wild

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, ep 1)

Palau is a tiny country with a big story. In 2009, this island nation in the Pacific created the world's first shark sanctuary for over 100 species. (S2, ep 2) Also in UHD.

In Palau, the local economy relies heavily on eco-tourism. But the country is fighting a hard battle against man-made environmental destruction. (S2, ep 3) Also in UHD.

Indonesia - The Secret Life Of Manta Rays: The vibrant reef ecosystem of Raja Ampat is twice the size of Singapore. See how the mysterious manta ray lives in these waters. (S2, ep 4) Also in UHD.

Indonesia - Amazon Of The Seas: The Indonesian archipelago lies in the heart of the Coral Triangle, an area recognised worldwide as the centre of marine biodiversity. (S2, ep 5)

Indonesia - Life In The Muck: Step into the waters surrounding Indonesia's sprawling archipelago, home to the world's richest reefs and its highest marine biodiversity. (S2, ep 6) Also in UHD.

Maldives - Paradise Shrinking: 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, ep 7)