Crescent Lake in Dunhuang called as Yueyaquan which is a crescent shaped lake in an oasis. It is located 6 km south of the city of Dunhuang in Gansu Province, China. Surrounding deserts and lake are very popular with tourists, who are offered camel and 4×4 rides. In 1960 the depth of the lake was 7.5 meters [24.61 feet]; later it has declined to 1.3 meters [4.27 feet] by 1990. In 2006 with the help of local government they started to fill the lake and restore its depth.