Sit back, relax and dive into the spectacular undersea world of the Great Barrier Reef. Discover crystal-clear video, cool Dolby Digital music, exotic fish of every color of the rainbow. No words, just 83 minutes of great original music, stunning images, 300 creatures in their natural habitat, body surfing dolphins!

This informative herring aid from WWII makes no bones about the need to make the most of every fish.

Deep Blue is a major documentary feature film shot by the BBC Natural History Unit. An epic cinematic rollercoaster ride for all ages, Deep Blue uses amazing footage to tell us the story of our oceans and the life they support.

The foreshore as you've never seen it before! War, survival, and marine ballet: in a Microscomos-style odyssey with sumptuous images, this documentary takes a close-up look at the aquatic world at low tide and its colorful creatures.

Coral reefs are believed by many to have the highest biodiversity of any ecosystem on the planet. A lot of the life found here can seem very alien at first, they occupy less than 1 percent of the ocean floor but yet are home to more than 25 percent of all marine life. Warm water reefs typically come to mind when thinking of the Pacific Ocean and the Caribbean Sea, these reefs are very well known but they don’t just occur in warm waters.  In this one hour special, we are brought into this alien environment and discover for ourselves a strange, hidden world that is simply abundant with life, ranging from the weird to the wonderful.

David Attenborough and scientist Johan Rockström examine Earth's biodiversity collapse and how this crisis can still be averted.

In the middle of the Indian Ocean, more than 1.500 km from the nearest continent, lies an untouched, mysterious archipelago – the Chagos Islands. This group of 60 islands is one of the last pristine wildernesses on Earth.  The Chagos Archipelago is one of the world’s largest marine national parks, and is strictly protected. A scientific expedition has been granted access to this politically disputed territory for the first time. In times of climate change, as global reef communities face a growing crisis, the researchers seek to show how coral reefs fare in places with minimal human interference.  During a journey into the unknown, we follow in the footsteps of internationally renowned scientists, who aim to unlock the secrets of a lost world and gain astonishing insights into one of the last true wildernesses on Earth.