Seasons & Episodes
Introduction
Experience the power of the blue whale - the largest mammal ever to grace our planet. Learn how the sun and moon help co
The Deep
A place of mountain ranges, perpetual night, pressures extremes and cold... and the weirdest life forms on our planet. D
Open Ocean
In the immense space of the open ocean the sea bed is a staggering five miles below the surface and the nearest island i
Frozen Seas
An environment where only the toughest survive, the Arctic and Antarctic are unrelenting habitats. Only in spring does l
Seasonal Seas
As the days grow longer, billions of microscopic plankton bloom under the blazing sun. Here in the temperate seas, three
Coral Seas
Bathed in bright sunlight and warm clear water, the coral reef is a rich oasis of life - the rainforest of the sea. Biza
Tidal Seas
The sun and moon move billions of tons of water with every turn of the tide. The strongest tides empty entire bays, smas
Coasts
From rocky cliffs to gentle dunes, the coasts are always changing. Day in and day out, they are battered by crashing wav
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