Photo taken on June 26, 2017 shows the scenery of Tangra Yumco Lake, Nyima County, southwest China's Tibet Autonomous Region. Tangra Yumco Lake is the deepest lake of Tibet with depth more than 210m. [Photo/Xinhua]

Photo taken on June 26, 2017 shows the scenery of Tangra Yumco Lake, Nyima County, southwest China's Tibet Autonomous Region. Tangra Yumco Lake is the deepest lake of Tibet with depth more than 210m. [Photo/Xinhua] 

Photo taken on June 26, 2017 shows aerial view of Tangra Yumco Lake, Nyima County, southwest China's Tibet Autonomous Region. Tangra Yumco Lake is the deepest lake of Tibet with depth more than 210m. [Photo/Xinhua] 

Photo taken on June 26, 2017 shows a monk rides on the lakeside of Tangra Yumco Lake, Nyima County, southwest China's Tibet Autonomous Region. Tangra Yumco Lake is the deepest lake of Tibet with depth more than 210m. [Photo/Xinhua] 

Photo taken on June 26, 2017 shows beautiful scenery of Tangra Yumco Lake, Nyima County, southwest China's Tibet Autonomous Region. Tangra Yumco Lake is the deepest lake of Tibet with depth more than 210m. [Photo/Xinhua] 

Photo taken on June 26, 2017 shows a senior stays at lakeside of Tangra Yumco Lake, Nyima County, southwest China's Tibet Autonomous Region. Tangra Yumco Lake is the deepest lake of Tibet with depth more than 210m. [Photo/Xinhua] 

Photo taken on June 26, 2017 shows farmland on the lakeside of Tangra Yumco Lake, Nyima County, southwest China's Tibet Autonomous Region. Tangra Yumco Lake is the deepest lake of Tibet with depth more than 210m. [Photo/Xinhua]