Without a doubt, the most dangerous sport in the world: jumping off mountains and floating on nylon wings.
This is not an ‘if-at-first-you-don’t-succeed’ kind of activity. Wingsuit base jumping is a real manifestation of a powerful human fantasy to fly, and these guys are taking their athletic prowess to its most daring extremes by climbing an Arctic mountain and base jumping from the summit. Proximity flying brings them within inches of mountainsides where a single rogue branch could be their demise. This is probably a major factor in its overall appeal.