This third episode traces the crucial importance of the sea to Britain's trade and to individual livelihoods of coastal communities. Joined on this leg of his epic sail by his son Fred, David follows the trade routes of the west coast of Scotland along the monumental channels that cut through the romantic Highlands and brought wealth and prosperity to the heart of Scotland. The journey starts at Craobh Haven and takes David along the Crinan Canal, around the Isle of Bute and up the River Clyde towards Glasgow. Show less