The Aqua Stadium of Waterfall City was a large structure devoted to swimming and water play. The Big-Snake Water Slide and the Little-Snake Slide ran from the Upper Slide Pool down to a large open pool, the Water Arena, and a pod of dolphins visited the caverns under the Stadium, which gladly played with the swimmers.
Windows were set in the sides of the subterranean caverns for those who would rather just watch the dolphins and fish. Ranks of seats were provided for those who would rather watch the swimmers or the water shows that are also performed here every evening by aquatic saurians, dolphins, and their human riders, who made spectacular entrances along the water slides. Its high walls were also a favored landing place for pterosaurs and for the gliders that shuttle to and from Waterfall City, which land on the Flight Platform.