Introduction to Haiyun Cave: Haiyun Cave is located in front of Taipingyan Temple. There is an octagonal pavilion on the cave, which is the "Reading Office of Prince Zheng Yanping".
Back then, the place was shaded and extremely quiet. When Zheng Chenggong lived in Taipingyan Temple, he often went to Haiyun Cave to study and listen to the rushing water of the stream. Now it has been listed as a cultural relic protection unit.