Dive, dive, dive! The world's oceans cover two thirds of Earth's surface. Take the plunge from beaches and coastal swamps to the deepest sea floor to meet the staggering variety of creatures that choose life in salt water.
Browse through a wide selection of factfiles on whales, dolphins, seals, fish and other forms of sea life.
Download a stunning screensaver and ogle the ocean from your desktop.
All the Blue Planet games in one place - get flash and dive on in!
Marine maestro or sea savant? Fish for facts with a quick quiz.
Explore six ocean habitats. From the deep abyss to the polar ice caps, find out how animals adapt to their environment.
A TV triumph, 5 years in the making.
The people who made it possible.
How did they film that?