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A look around the coast of the British Isles. Nick Crane ventures out into the Portland tidal race to see how this tidal surge creates some of the roughest waters in Britain.

A look around the coast of the British Isles. Nick Crane ventures out into the infamous Portland tidal race to see how this fearsome tidal surge creates some of the roughest waters in Britain surprisingly close to the tourist beaches and Georgian splendour of Weymouth. Miranda Krestovnikoff goes in search of a family of white-beaked dolphins, these elusive cold water creatures are rarely seen off the English coast, so why is this group so far south?

First shown: 5:30pm 26 Nov 2011
Available for 18 days Why? Duration 14 mins