Introduction to Liangyi Palace: Liangyi Palace is the first cave hall that visitors enter after entering the cave. The cave hall is high and wide and can accommodate thousands of people. There are huge rocks on both sides, with Lion Peak on the right and Elephant Peak on the left. On the stone wall facing it is the stone inscription "Er Yi You Fen" written by Wu Tongchun, the prefect of Guangde in the Ming Dynasty, hence the name.