Introduction to the Goldfish Pond: The original site of the Goldfish Pond is about 50 meters under the roadbed at the south entrance of the Tanqinxia Tunnel. There used to be a pool on the site, and a large goldfish was born in the pool. According to folklore, if there is a drought in Guangou, as long as you pan the gold fish pond, it will rain, which is very effective. In the 1990s, when the Badaling Expressway was built, the spring water of Shifosi Valley was used to move the goldfish pond here.