Great Barrier Reef: Swimming in a cave of feeding sharks

Help

Most of us know that Australia's Great Barrier Reef is one of the natural wonders of the world, but did you know it is home to sharks that walk on land and deadly snails that hunt fish?

In a new BBC series presented by the marine biologist Monty Halls and produced by James Brickell, the team encountered some extraordinary sights in their year-long project.

Great Barrier Reef, BBC Two, 1 January, 8pm

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.