Barney Harwood and Gemma Hunt discover the world of Australia's Barrier Reef. Everyone needs a place to call their own, and the Barrier Reef gang is no different. Show more

While exploring Australia's Barrier Reef, Barney Harwood and Gemma Hunt discover creatures which can cross great distances owing to their amazing navigational skills. Show more

Barney Harwood and Gemma Hunt explore Australia's Barrier Reef and discover that there is a reason for the riot of colours and patterns in the fishy world. Show more

Barney Harwood and Gemma Hunt find that coral reefs work like a human city. Everyone has a job to do - from public transport to cleaning, building and waste disposal. Show more

Barney Harwood and Gemma Hunt explore Australia's Barrier Reef and meet the sports stars of the sea. There are sprinters, jumpers and even gymnasts in this ocean arena. Show more