Introduction to Yingyue Cave: Yingyue Cave is located in the cliff more than 100 meters north and east of Longgang. It is the first layer of cave in Longgang. The cave is 43 meters long and runs 250 degrees northeast. The south entrance is 3.9 meters high and the diameter is 3.4 meters. The north entrance is 2.4 meters high and the northern end is the outlet of the underground river.