Tourists enjoy themselves by the Qinghai Lake, about 150 kilometers west of Xining, capital of northwest China's Qinghai Province, on August 13, 2009. Located in northeastern part of the Qinghai-Tibet Plateau with an altitude of over 3,200 meters, the Qinghai Lake, covering an area of 4,300 square km, is the largest inland salt-water lake in China as well as an important ecological and natural reserve. [Xinhua]

Tourists enjoy themselves by the Qinghai Lake, about 150 kilometers west of Xining, capital of northwest China's Qinghai Province, on August 13, 2009. [Xinhua]