Where to watch Children of the Sea(2019)

Name: Children of the Sea
Genre: Animation, Fantasy, Adventure, Mystery
Released: 2019-06-07
Duration: 111 min
Cast: Mana Ashida, Hiiro Ishibashi, Seishu Uragami, Win Morisaki, Goro Inagaki

Movie · 2019 · 1h 51m · Animation, Fantasy, Adventure

In the United States, you can watch Children of the Sea for free on Hoopla. You can also rent or buy it on Apple TV, Google Play, and YouTube.

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Where to stream Children of the Sea

Availability in United States

Free

Hoopla

Rent

Apple TV
Google Play
YouTube

Buy

Apple TV
Google Play
YouTube

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Data updated on October 10, 2026. Availability data from JustWatch.

Children of the Sea plot summary

Ruka is a young girl whose parents are separated and whose father works in an aquarium. When two boys, Umi and Sora, who were raised in the sea by dugongs, are brought to the aquarium, Ruka feels drawn to them and begins to realize that she has the same sort of supernatural connection to the ocean that they do. Umi and Sora's special power seems to be connected to strange events that have been occurring more and more frequently, such as the appearance of sea creatures far from their home territory and the disappearance of aquarium animals around the world. However, the exact nature of the boys' power and of the abnormal events is unknown, and Ruka gets drawn into investigating the mystery that surrounds her new friends.