Introduction to the Dragon Palace Palace: is a natural open-air palace with an area of about 1,000 square meters. It is surrounded by rocks on three sides and faces the canyon. Zhengfang Rock is about 180 meters high, with a huge thousand-layer door underneath, which is called the main hall of the Dragon Palace. There is a cave on the top of the rock, with clear springs and waterfalls flying down, forming a huge water curtain, like a palace curtain, covering the main hall.