Introduction to the South Gate Tower: The South Gate Tower is 27.5 meters high, and the year of its construction cannot be determined. In the center of the platform is a two-story pavilion with double eaves on the top of the mountain, which is 20.5 meters high. There is a wooden staircase in the building to the second floor. The second floor is surrounded by wooden corridors for visitors to lean on the railings and look out.