Introduction to Xuantan and Shentan: The Xuantan is at the top and the Shentan is at the bottom. The two pools are about 5 meters apart. The hanging pool is built with four stone walls, the water is deep and small, and the water flows out from the cracks in the stones, with a height difference of only three meters; the sinking pool is composed of half rock and half river beach, with a flowing water slope above and flowers and grass below. The two pools are interdependent and interesting.