The Taiji Cave was formed by tectonic movement 250 million years ago. It was an ideal place for people to visit more than 2,000 years ago. The inscriptions of Fan Zhongyan in the Song Dynasty and Wu Tongchun in the Ming Dynasty were preserved. Taiji Cave is an enormous cave, ideal for touring. The depth of the cave spans tens of miles downward. Caves of different sizes are connected to each other and vary in temperature. The entrance to the cave is located at the top of the mountain and exits at the foothill.