This project is a demolished and rebuilt public building, which is presented as a circular city observation platform facing the sea is located in the coastal center of Nanshan District, Shenzhen. It is adjacent to the coastal activity lawn in the south, the public parking lot in the north, the intelligent fitness area for citizens in the east, and the landscape tree array and hard ground square in the west. It is set off in the coastal landscape belt of Shenzhen Bay Park about 13 kilometers long, with convenient transportation and good coastal landscape.