The Everest Marathon is listed in the Guinness Book of Records as the highest marathon in the world. The start line is at Gorak Shep 5184m (17,000 feet), close to Everest Base Camp in Nepal. The finish is at the Sherpa town of Namche Bazaar at 3446m (11,300 feet) and the course is a measured 42 km (26.2 miles) over rough mountain trails. It is the world's most spectacular race and has been held nine times since 1987.