Introduction to Hongyan Wonderland: The cave is more than 2,000 meters long. The stalactites in the cave are scattered up and down in various shapes and forms. The 38-meter-high Optimus Prime is incredibly beautiful. The cave is known as the four unique caves in China: "Nine Sky Waterfall, Earth-shaking Thunder, Immortal Field, and Water Sky". There are 38-meter-high Optimus Prime and Jinyin Mountain, Zhuangyuan Worship Tower, Yunyan, Wuzhi Mountain, Danfeng Chaoyang, Dragon Gate, Golden Bell Pagoda, Immortal Finger Finger, Embroidery Tower, etc.