Qinghai Lake, the "green sea" high on China's Qinghai-Tibet Plateau, has been a tourist magnet for years but its diverse and unique ecosystem has also come under threat. Join CGTN's Sim Sim Wissgott to see what makes this lake so popular and what is being done to protect it.

Director: Shi Xun
Reporter: Sim Sim Wissgott
Videographer: Guo Yuanheng
Project leader: Li Tianfu 
Video editor: Li Xinyue, Yu Yingtian
Supervisor: Liu Cong, Zhang Shilei