Introduction to Sanlongtan: The water in Sanlongtan is clear and there are countless fish swimming in it. The huge boulders beside it stand leaning like a shed, which is so precarious that people dare not approach it. During the rainy season, the stream flows into the pond like a wide screen. Walking along the stone path in the mountains, you can see countless strange rocks. Although they have been washed by the stream and become unusually round, they have their own shapes and are arranged in an orderly manner.