Shimajiro and the Song of the Whale(2014)

劇場版 しまじろうのわお！　しまじろうと くじらのうた

Shimajiro, who helped an injured baby whale Kuu-chan, takes care of Kuu-chan who wants to return to her mother and keeps her in touch. In order to return Ku-chan, who was about to be sent to the aquarium, to her mother, Shimajiro rides on her back and sets out on a journey toward the southern sea.