The 1st day of the swimming lesson! Even Goma-chan looks happy to be swimming in a large pool! Sakata-kun decides to cheat and grabs on Goma-chan’s tail to win the race, but the surprised Goma-chan starts to swim fast! Mr. Tendou tries to help Sakata-kun, but he starts to race Goma-chan instead. Meanwhile, Ashibe-kun and Yuma-kun decides to teach Yumiko-chan and Mao-chan how to swim. Will the two learn how to swim?
Everyone, let's get lots of swimming 
practice in this summer.
يا جماعة، لنتمرّن على السّباحة جيّداً في هذا الصّيف
Kinder, diesen Sommer werdet
ihr alle schwimmen üben!
Chicos, practiquemos natación 
durante el verano.
Chicos, practiquemos 
natación durante el verano.
Écoutez-moi, nous allons
tous bien nous entraîner cet été.
Bambini, durante l'estate 
faremo lezione di nuoto.
Crianças,