The Yangzhuoyongcuo Lake which is also called "the Yang Lake" for short, is member of the three holy lakes of Tibet in China. You guys have to see the blue of this lake, that's beautiful. And the white of the snowy mountains, the green of the trees, and the yellow&red of the lama temples. To get there you can take the bus at the west-suburb bus station of Lhasa or hire a private taxi. Just is not near.