Series 1, Episode 6. Hidden deep in the forests of Vietnam a local man, Mr Ho Khanh, made an extraordinary discovery - possibly the world's largest cave. But to film there first the Planet Earth III team have to get there. 6/7. A behind-the-scenes look at the final chapter of the Planet Earth trilogy, which explores the greatest habitats on our amazing planet.

Series 1, Episode 1. Nearly seventy years since David Attenborough first visited Raine Island the Planet Earth III team return to film the nesting green turtles. 1/7. A behind-the-scenes look at the final chapter of the Planet Earth trilogy, which explores the greatest habitats on our amazing planet.

Series 1, Episode 1. Nearly seventy years since David Attenborough first visited Raine Island the Planet Earth III team return to film the nesting green turtles. 1/7. A behind-the-scenes look at the final chapter of the Planet Earth trilogy, which explores the greatest habitats on our amazing planet.

Series 1, Episode 2. Off the Canary Islands, the Planet Earth team are searching for one of its smaller and less familiar residents - a tiny creature called a Columbus crab, which is only about the size of your thumbnail. 2/7. A behind-the-scenes look at the final chapter of the Planet Earth trilogy, which explores the greatest habitats on our amazing planet.

Series 1, Episode 2. Off the Canary Islands, the Planet Earth team are searching for one of its smaller and less familiar residents - a tiny creature called a Columbus crab, which is only about the size of your thumbnail. 2/7. A behind-the-scenes look at the final chapter of the Planet Earth trilogy, which explores the greatest habitats on our amazing planet.