Secrets of the Deep

Liz Bonnin and a team of scientific experts set off beneath the waves to explore this spectacular archipelago. It's an exciting opportunity to delve into a world that largely remains a mystery to science.

Venturing down in the Nadir, a specially equipped deep sea submersible, Liz goes in search of an elusive ocean giant, the mola or sunfish, to understand more about its little-known behaviour in the deep.