In this programme, The Adventure Show is in the imposing landscape of Glencoe, for what must be one of the most dramatic marathon courses anywhere in the UK. The scenery may be inspiring, but this is a tough race with over 1,600 metres of ascent including 500 metres over the aptly named Devil's Staircase. Also, we're looking ahead to winter with one of Britain's best Olympic hopes, snowboarder Ben Kilner. We're joining wilderness expert Chris Townsend, who explains the attraction of the Cairngorm mountains in winter, whilst Cameron McNeish's wild walk links the coastline and hills of Sutherland.