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Untrained mariner Timothy Spall has spent a fortune on technology for his new challenge - the unpredictable Irish Sea - as he and his wife continue their mini-odyssey around Britain.

Entering Liverpool means navigating their first big city since leaving London, but reaching dry land can be daunting in a small boat when dodging tankers and ferries. It's even more difficult when the coastguard sends him round in circles because he's on the wrong side of the marker buoys.

On his way to Glasson Dock in Lancashire, Tim is tricked again by another buoy. Misunderstanding his sea chart results in an unplanned dropped anchor in the middle of the Irish Sea, where they have to wait all night before he can enter the port.

Their next destination finds them in the company of royalty - Piel Island near Barrow-in-Furness has the unusual honour of having its own king and queen, a tradition which goes back centuries.