Pristine and peerless, Dagze Tso (which means "Tiger's Crown Lake" in Tibetan) rests serenely in the fault basin of Nagqu, China's Xizang Autonomous Region, resembling a blue diamond inlaid upon the plateau. 

Filming: Chinese National Geography

Editor: Su Yun, Peng Qing

Translator: Luo Rongting, Zhi Xinghua

Review: Drakpa Wangchen, Pan Lu