Mengya Valley, southwest of Xizhou, is close to the mountain and the sea. Although it is a deep valley, it is actually between two towering peaks. Below the peak is the edge of the deep sea. The waves are so rough that they don't stop all year round.

the reefs of numerous sizes are full of mottled and ancient breath like the back of a turtle. The spring tide is surging and the angry waves are ripping the bank, and the deafening roar is endless.

there is another cave under the Mengya valley. About three miles away from the coast, there is a very mysterious cave hidden under a large...