While at the beach Arale Norimaki rescues a shark. In return, the shark invites her and the rest of the Norimaki to their underwater city. Meanwhile, Suppaman intends to follow them and get revenge. While in the city, Arale meets Urashima Tarō, who joins Arale while playing at the amusement park.
Released: Mar 12, 1994
Runtime: 25 minutes
Stars: Kenji Utsumi, Mami Koyama, Naokazu Adachi, Wakako Shimazaki
Crew: Yoshio Usuda (Key Animation), Satoru Iriyoshi (Key Animation), Nobuyoshi Hoshikawa (Key Animation), Mitsuru Aoyama (Key Animation), Yuki Kinoshita (Key Animation), Akio Ujiie (Key Animation)