Introduction to Santan Gorge: Located in the Tianchi Forest Farm of the Aershan Forestry Bureau, 77 kilometers away from the hot spring street in Aershan City, it consists of three deep pools: Yingsongtan, Yingbitan, and Longfengtan. The canyon is about 2 kilometers long and is cut by the river. The rapid Halaha River passes through the valley, with beads flying and jade splashing, and volcanic lava covering the river bed. The waves in the deep water are as flat as a mirror, and it is difficult to see the bottom. In shallow areas, people can step on rocks and wade across. The south wall of the canyon is steep and steep, and the north wall is made of huge volcanic rocks.