It can be a dangerous sport at the best of times, so spare a thought for these professional climbers who posed completely naked in a variety of perilous positions for a calendar photoshoot. These striking images show the women posing without any equipment in some of the most sensational landscapes across the United States and the world. Adventure photographer Dean Fidelman, from San Fernando Valley, California, travelled to Colorado, Spain, Argentina, Thailand and other exotic locations to complete the ‘Stone Nudes’ calendar.