9/13. Wick to Berwick. Nicholas Crane begins the next leg of his journey at John o' Groats, the village farthest from Land's End. At Cruden Bay he sees the impact made 35 years ago by the discovery of North Sea oil. Meanwhile Miranda Krestovnikoff observes bottlenose dolphins in the Moray Firth. INTERACTIVE: for details see Sunday at 9pm
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