Also known as Yangzhuoyu Lake (local people usually refer to it as "yang lake"), because Tibetan "wrong" means "lake". Geographically, it belongs to Langkazi County in the southern region of Shannan, but many tourists choose to travel to Shigatse region to take it here. Yang Zhuoyu is wrong, Tibetan meaning "swan pool", is one of the three sacred lakes in Tibet, the lake is 4,441 meters above sea level, 130 kilometers long, 70 kilometers wide from north to south, is the largest inland lake in the north of the Himalayas. Yanghu has more mouths, like coral branches, so it is also known as the "coral lake above" in Tibetan. There are more than 10 small islands, large can accommodate five or six households, small is only more than 100 square meters. Yanghu is a low-concentration saltwater lake, which starts to freeze in mid-November every year, and the ice thickness can reach 0.5 meters. The lake is rich in fine scale fish, Tibetan cracked carp, plateau bare moths, etc., the reserves are estimated to reach 2~ 300 million kilograms. This is the largest water bird habitat in southern Tibet. Every winter, the birds migrate south to this place. On the shore of the lake and the island of the center of the lake, swans, water pigeons, yellow ducks, ospreys and spotted fins are very much.