The Natatorium of Southeast University is located near the east gate of the Jiulonghu Campus, on the north side of Jiulonghu Gymnasium. When faced with this long-awaited project, we wanted to create a sense of intimacy, place, and continuity of the university context to the campus. The arc of the building is like a flower, woven together in 7 repeating forms, which makes it look lively. In addition, the building does not have a so-called "top roof", its roof and wall as a whole. You can even climb up the slope, with the whole arch under your feet.