Scotland's south west is the country's great overlooked corner — a coastline of ruined abbeys, clifftop castles and artists' towns, with barely a coach in sight. Over five days you'll follow the newly celebrated South West Coast 500 through Dumfries and Galloway to the Ayrshire shore, tracing the poetry of Robert Burns, the last hours of Mary Queen of Scots, and the birthplace of the man who founded the United States Navy.