The boys start off by exploring Loch Lomond and Trossachs national park, then head out to the western isles to tackle the spectacular 185-mile Hebridean Way cycle path. (S1 Ep4)[S]
Larry Lamb and son George cross the border into Wales, testing themselves against the mountainous peaks of Snowdonia, before hitting the rugged cliffs of the Pembrokeshire Coast. (S1 Ep2)[S]