Cycling sisters Kerry and Kirsty MacPhee from South Uist take to social media to find out the nation's favourite cycle routes. In this episode, they take on big hill climbs in the south of Skye and the mainland with Fiona Grant, a cycling aficionado who lives in Skye. The first steep climb starts at Ashaig before a swift descent with sharp alpine bends to Kylerhea. Here they catch the world's only hand-operated turntable ferry, the Glenachulish, across the water to the mainland to reach the picturesque village of Glenelg. From here they carry on to another gruelling climb up to the summit of Mam Ratagan with its rewarding views of the Five Sisters of Kintail.