Sakura and the Pool and the Big Wave

Sakura and all her friends are heading to the pool for day, but not every is excited about the entire day. Sakura is dreading the new water slide while Rika is afraid her swimming lessons won't pay off. In order to outdo him, Shaoran challenges Eriol to a race, but loses. All of a sudden, the wave machine goes crazy, trapping people beneath the waves, including Rika, and Sakura must find a way to save her.