Sailimu Lake was called "clean sea" in ancient times. The lake is 2071 meters above sea level, 30 kilometers long from east to west, 25 kilometers wide from south to north, covering an area of 453 square kilometers, with a water storage capacity of 21 billion cubic meters. The lake water is clear and transparent with a transparency of 12 meters. It is the highest mountain lake with the largest area and beautiful scenery in Xinjiang. It is also the last place favored by the warm and humid air of the Atlantic Ocean. Therefore, it is said that "the last tear of the Atlantic Ocean".