Introduction to Camp Three: Camp Three is at an altitude of 3,400 meters. Some food and supplies are usually left here for descent. The main dangers are: dark cracks and acute mountain sickness. From Camp 3 to Camp 4, the distance traveled is 46 kilometers, the ascent is 900 meters, and the slope is steep. The greatest potential dangers are light and dark cracks, falling rocks, and avalanches. On the way, you have to pass through a large wind outlet at 4100 meters. In bad weather, the wind speed can reach 80 kilometers per hour, accompanied by snowstorms, and the temperature can drop to -30 degrees.