Introduction to the Immortal Boat Mooring Cable: Located under the Huafeng Immortal Couch, there is a jagged boulder like a boat, which was called "Prajna" in ancient times. There is a magical and unpredictable "Thirty-Six Caves" under the boat. Every rainy day, the clear sound of pipa echoes in the cave. It is said that the Sea Dragon King came here in a boat and was stranded, and then returned to the sea from this cave.