Sakura, the Pool and the Huge Wave
Sakura and her friends go spend the day at a new indoor water park, where Eriol causes the water to rise to dangerous levels. When Rika, who has trouble swimming, nearly drowns, Sakura uses the transformed Watery card to save her, risking being seen using her magic by everyone.
Aired 11/01/2000EP 63 - Sakura, the Pool and the Huge Wave

1998
Cardcaptor Sakura
One day, Kinomoto Sakura, a 4th grader stumbles upon the mysterious book of Clow. Upon opening it and reading the name of The Windy aloud, Sakura scatters the cards to the winds. Sakura is elected and appointed by Keroberos, Guardian of the Cards to capture the remaining cards. With her friend Tomoyo and rival Syaoran, Sakura begins an adventure that will forever change her.