Plot: On the final grand tour of the series, Paul Murton goes over the sea to Skye to visit the home of celebrated writer and naturalist Gavin Maxwell, before scaling the famous Cuillin mountain, Am Bastier. On the nearby Isle of Raasay, he learns about 'Calum's Road' - the amazing true story of the determined crofter, Calum Macleod, who singlehandedly built a road to connect his isolated community