Introduction to Xiancao Lake: Xiancao Lake is an ice-eroded lake left by glacial movement, with an altitude of 3820 meters. There is a kind of strange aquatic plant growing in the lake. Its long and narrow stems and leaves are soft and tough. When it is close to the water, it falls on the water and neatly follows the direction of the water flow, forming a circular circle of aquatic plants around the lake, forming a beautiful scene in the sun. Brilliant golden garland.