Located in the Niujiaoqian, the Longhu Cave zigzags 2,000 m long, and can be divided into upper, middle, and lower layers. At present an area of 50, 000 m² has been open to tourists, including the main spots of the “Border River”, “Shouting Spring”, “Mirage” and “Heaven Court” etc. According to the inscriptions in the cave, the local officers and civilians in the border areas usually came here to pray for rain in the ancient years.