Chaka Salt Lake is located in Ulan County, Haixi Mongolian and Tibetan Autonomous Prefecture, Qinghai Province. The lake surface is at an altitude of 3059 meters and covers an area of 105 square kilometers. "Chaka" is a Tibetan word meaning salt lake, or the sea of Qinghai salt. In Mongolian, it is "Dabuxun Nuoer," also meaning salt lake. Chaka is an important gateway for tourists entering Xinjiang and Tibet, serving as the eastern entrance to the Qaidam Basin. Adjacent to Qinghai Lake, it is a crucial node on the Southern Silk Road. The surface of Chaka Salt Lake reflects the breathtakingly beautiful sky like a mirror, earning it the title of "China's Mirror of the Sky." Chaka Salt Lake was named one of the "55 Places to Visit in a Lifetime" by National Geographic Traveler and one of the "30 Most Beautiful Places in China" by CNN. It is also the only Chinese lake to be included in the "Top Ten Most Beautiful Lakes in the World." The small train, a primary means of transporting salt in the 1970s, has a track gauge of only 60cm, dating back to the Russian era in 1904. Tourists ride it to the core scenic area. Besides the salt lake, there is a group of salt sculptures, which, while somewhat novel, somehow feel a little lacking. At the exit, you can get a free bag of locally produced "large blue salt" with your ticket.