Original air date: 30 November 2009

The timeline above shows how the programme progresses
Selected material
Creatures of the deep
The animals found in the deep are quite often new to science, or at least very strange looking


Behind the scenes
Creating a coral reef

To prepare for the coral reef documentation the crew searched for a hull that they could then clean up – so that animals would colonise it – and then make sure that sinking it would not cause any pollution to the sea.

Every crew member has to go through drilling in how to cope during a white-out, especially if a college is lost in one. You have to cope without using your eyes.