Aydingkol or Ayding Lake is a lake in the Turpan Depression, Xinjiang Uyghur Autonomous Region, China. The meaning of the lake is "moon lake" in Uyghur language, due to the lake having a layer of white salt along its edge, giving the appearance of a shining moon.
The lake is located at 154 m below sea level, therefore it is the lowest point in China, and also lower than anywhere on Earth outside the Dead Sea in Jordan. In ancient times, Ayding Lake was known as juéluòwǎn (觉洛浣). The lake is located in the south hinterland of the Turpan Depression, approximately 35 kilometres away from the city of Turpan. From east to west, the lake spans 40 kilometres; the north-south span is 8 kilometres; and the total area of the lake is 200 square kilometres. This lake is now totally dried, and very muddy and salty.