Filming in water can be challenging, but Nigel Marven has got some hints and tips for you!
South Pacific captured some incredible imagery for the series.
There are as many species of coral in deep sea reefs as in their warm water counterparts.
A world of wildlife beneath the waves.
Exploring the deep blue sea's weird, wonderful and creepy inhabitants.
The seas around Sulawesi contain some wonderfully creepy wildlife.
Nigel Marven sets out on another adventure, this time focusing on grey whales.
Up and down the coastline, Nigel Marven meets whale-watchers, scientists and researchers.
Sir David Attenborough's seminal ocean classic.
Simon Reeve’s voyage of discovery takes in the natural as well as the human world.
Trevor Hutton is self-trained but South Africa has always cautioned against the sport.
One of the most wide-spread mammals on the planet, they inhabit every ocean.
Watch highlights from our live Ask Attenborough event with Sir David.
See all kinds of underwater life with these pictures of fish and sea creatures.
Photos taken from the Reef to Rainforest episode of Great Barrier Reef.
What lies at the bottom of the oceans? What would happen if the planet lost them?
Sir David Attenborough on the gigantic blue whale.
Sir David Attenborough talks about Earth's oceans.
The movement of the tides is caused by rotation of the Moon and the Earth.
Ben Fogle is an adventurous British writer and television presenter.
Cargo vessels are the closest you can get to recreating the golden age of sea travel.
No visit to New Zealand is complete without spotting its spectacular marine life.
How big is the world's biggest iceberg? How deep can you dive without oxygen?