Chaoyin Cave is located in the Purple Bamboo Forest scenic area, opposite to the Guanyin Courtyard that Refused to Leave. Similar to Fanyin Cave on the east side of Mount Putuo, Chaoyin Cave is also a landscape that requires you to listen with your ears. In comparison, Chaoyin Cave is much lower and even buried among the reefs and not easy to find, but it is longer and more winding than Fanyin Cave. From the Purple Bamboo Forest parking lot, go south and turn left towards the Purple Bamboo Forest Zen Monastery. After about 200 meters, you can reach Chaoyin Cave. Chaoyin Cave is half-submerged in the sea, about 10 meters deep. The three characters ‘Chaoyin Cave’ at the entrance are the handwriting of Emperor Kangxi. Tourists can walk down the steps on the cave and listen to the sound of waves hitting the rocky cliffs. You will feel the roar of the waves, and even the ground under your feet seems to be shaking. Watching the ebb and flow of the tide at Chaoyin Cave and looking out at the sea where the water and sky merge into one in the distance from the railing gives a feeling of sudden enlightenment. It is said that this is the place where the Bodhisattva Avalokitesvara appears. The Guanyin Courtyard that Refused to Leave is the first temple on Mount Putuo, which also adds a bit of mystery to Chaoyin Cave. In the hearts of many believers, the sound of the tide is not only the sound of the ocean tide but also the sound of the Bodhisattva preaching. Therefore, many people still make wishes and fulfill their vows here. It is said to be very effective. Open all year round and all day. The specific business status is subject to the opening situation on that day.