Zhuomalacuo, also known as the Pearl Sea, is located in the dense forest northwest of Xiannai Snow Mountain in Daocheng Aden Scenic Area, a plateau lake. Zhuomalacuo: It means "fairy, domo", "cuo": lake, sea son meaning, so Zhuomalacuo altitude of 4,100 meters, area 0.75 hectares, a long time ago, at the foot of Xiannai, it was originally a big lake. Later, after the embankment was broken, the lake became smaller, and the lake was left.