Project Background. "Building a bigger restroom in this area."-This is the initial request I received when I was brought to this site by the first party in 2017. Nanjing Tangshan Ancient Ape Cave Scenic Area is famous for the discovery of ancient ape ruins and has always been a famous tourist attraction in the suburbs of Nanjing. There is a flood channel that runs east and west on the theorem slope of the mountain range because of the topography of the mountain range, which is the source section of the Tangshui River, the mother river of Tangshan. The project is located at the bottom of the northern slope of the mountain, the only narrow area left between the floodway and the city road. Limited by the cramped land use, the scenic area has been plagued by outdated service facilities issues. This project aims to move the humble ticket office and management office next to the original parking area of the scenic area to a larger site, and build a public restroom in the scenic area.