Thurso to Orkney

S1, E10: From Britain's northernmost station at Thurso in Caithness, Michael Portillo heads for the ferry port of Scrabster to cross the Pentland Firth to the Orkney Islands. Passing the Old Man of Hoy, Michael takes in stunning views of the Orkney archipelago and the rugged coastlines of its 70 islands. Michael reaches land at Stromness on the largest of the islands, Mainland, and heads for Kirkwall, its most historic town.