Beihai Ocean Garden is a large aquarium in the downtown area of ​​Beihai. It has a huge living coral exhibition tank, and you can see living corals of various shapes, many of which are rare. The Window of the Sea is divided into two levels of exhibition halls, consisting of mysterious sea, coral sea, maritime silk road, Zheng He Xia Yang, Ocean Theater, 4D motion theater, and other themes, as well as wonderful mermaid performances, ideal for children.