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 are in Coigeach in Scotland's north west with Seonaidh Charity, who first got to know his chosen route as he'd often travel the road to visit his now fiancee. Starting at the foot of a mist-shrouded Stac Polly they head off round the Coigeach peninsula. Before long the bracing wind clears the clouds to open up fantastic views of the Summer Isles and the hill tops of Assynt. Seonaidh tells the girls about the fairy folklore in the area and they meet his future father-in-law to find out more about the place names in the area.