Tongtianfei Waterfall, originally known as Gexian Cave, was named after Ge Hong, a famous Taoist theorist, medical scientist and alchemist in the Eastern Jin Dynasty. The scenic spot is composed of mountains, caves, water, forests and stones, with rich natural ecology. It's not very suitable for children who are too young, because some stone steps are a little steep, and the caves of stalactites with colorful lights are very distinctive.