First in a six-part series in which mountaineer Cameron McNeish accompanies outdoor enthusiasts on their favourite long-distance walks in wild and inhospitable locations.
McNeish is accompanied by conservationist and Olympic gold-medallist Chris Brasher as he traverses Scotland's Cairngorm mountain range. They travel through a breathtaking landscape, with extreme conditions varying from white-out to brilliant sunshine. See today's choices.
BBC Book: Wilderness Walks, price £17.99, is available at bookshops