Tourists visit Caka Salt Lake scenic spot in Qinghai

Photo shows the sunset scenery of the Caka Salt Lake scenic spot at Caka Town of Wulan County, northwest China's Qinghai Province, July 18, 2019. Caka Salt Lake, covering an area of 105 square kilometers and with an altitude of 3,100 meters, attracts many tourists in summer. (Xinhua/Zhang Long)