I kind of wonder how many permits would be required to do this??
"The ultimate feat, she believes, is a multi-day traverse she calls the Horseshoe. The climber would start by ascending the scalloped face of 25,790-foot Nuptse, then traverse a razor ridge on 27,940-foot Lhotse, climb 29,035-foot Everest via the Southeast Ridge, and descend the West Ridge. Hawley thinks it could be done sometime soon—or possibly "never."
Later, when I mention the Horseshoe concept to American climber Dave Hahn, who has summited Everest 12 times, he chuckles. "It's not calling out to me," he says. "It would be insanely difficult."
http://outsideonline.com/adventure/travel-ta-201104-climbing-records-elizab...