Introduction to Luyou Cave: Luyou Cave is located on the cliff on the north bank of the Wu Gorge mouth of the Yangtze River, about 1 km away from Wushan County. Luyou Cave System consists of two interconnected limestone caves, the lower cave is called "Qingshui Cave" and the upper cave is called "Renhe Cave". Because the great poet Lu You of the Southern Song Dynasty visited Qingshui Cave on his way to Kuizhou in the summer of the sixth year of Qiandao in the Southern Song Dynasty (1170), it was later renamed Lu You Cave.