The BBC spent five years and $10 million to produce this landmark exploration of the ocean, a world we know less about than the moon. We go further out and deeper down to show you things that have never been seen before. The Blue Planet: Seas of Life reveals the sea and its communities at their most fearsome and alluring. Until now, we've only touched the surface...

The Blue Planet Ended after Season 1

BBC One aired the final episode on Wednesday 31st October 2001

The Blue Planet Series Guide

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