The Adventure Show joins 300 competitors from all over the UK for nearly 60 miles of racing in the majestic landscape of Highland Perthshire. There's a chilly swim across Loch Tay, a 15-mile run over 7 Munros, seven miles of kayaking and to finish an epic day there is a 34-mile bike ride. Adventure racing doesn't get much tougher than this. Plus Duncan McCallum takes on a biking challenge in Scotland's last great wilderness, while film-maker Dan Bell celebrates our wild places.