Dozens of mountaineers have converged on Pakistan’s mighty K2 peak, vying to conquer one of the world’s last major climbing challenges. The AFP news agency reports that four teams with around 60 climbers and sherpas between them have begun climbing the world’s second-highest peak — known as the “savage mountain” — where winds can blow at more than 200 kilometres per hour and even in summer almost one in six climbers who attempt the summit die, in an attempt to reach the summit in winter. Since the first attempt in 1987-1988, only a handful of winter expeditions have been made on the 8,611-metre mountain, and none of them have gotten above 7,650 metres.