Seven Third Summits Sumantri () and Ngga Pulu (). The definition of "continent" is a matter of some dispute among mountaineers seeking to complete this challenge. The main ridge of the Greater Caucasus range is generally considered to form the boundary between Europe and Asia. In that case, Mount Elbrus () and Dykh-Tau (), are the two highest mountains in Europe. Excluding the Caucasus Mountains, Mont Blanc () and Monte Rosa () would be Europe's two highest mountains. The Australian continent is defined as comprising the mainland of Australia and proximate islands on the same continental shelf, including Tasmania and New Guinea. In
Mount Elbrus (). Before reaching this saddle, the route passes through a gently sloped basin filled with snow. At the saddle there is a shelter, from which the route heads west, then – left, in the direction of rocks forming the shoulder of the west summit, in the form of a narrow, exposed snow path that allows for a straight dash to the summit ridge. The descent of Elbrus takes about 3–6 hours. While returning from the Elbrus summit, the most common mistake that climbers make and that often turns out fatal is heading low and down too early after their half-traverse