Introduction to Guanyin Cave: There is a hole drilled into a single-walled stone in the southwest corner of the mountain, called "Guanyin Cave". The hole is 3 meters deep, 2 meters wide and 2 meters high. There is a Buddha platform carved on the east wall of the cave. There are three Buddhist niches on the wall. A couplet is engraved on both sides of the stone gate: "The compassionate Lord on Mount Putuo, the immortal in the purple bamboo forest."