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.
Mana Ashida , Hiiro Ishibashi , Seishû Uragami , Win Morisaki , Yû Aoi , Sumiko Fuji , Gorô Inagaki , Min Tanaka , Tôru Watanabe
Animation, Adventure, Family, Fantasy, Mystery

If you're looking to stream Children of the Sea through trusted and legitimate sources, there are several legal options available depending on your location and preferences. For those with subscriptions, major platforms like Netflix, Disney+, Amazon Prime Video, Apple TV+, and HBO Max (availability may vary by region) often include superhero classics like Children of the Sea in their rotating libraries. Regional services such as Viu may also offer access depending on licensing agreements.
Prefer to stream without a subscription? You can check out ad-supported platforms like Tubi, Pluto TV, Crackle, or Peacock, where available. These services allow free viewing with occasional ads and are fully licensed.
If you’d rather own or rent a copy, digital storefronts such as Google Play Movies, Apple iTunes, and Amazon Video offer Children of the Sea for individual purchase or rental, often in HD or 4K quality.
Additionally, don’t overlook library-based services like Kanopy and Hoopla, which allow free streaming for users with participating library cards or university accounts. Lastly, some film studios and official distributors occasionally upload full movies to their YouTube channels, giving you a legal way to enjoy classic titles directly from the source.
Dive into the world of heroes and epic adventure by watching Children of the Sea online completely free at Movies123—your trusted source for high-quality, hassle-free streaming. This fan-favorite action-packed sci-fi classic is available to stream in crisp HD and includes English subtitles to enhance your viewing experience. Whether you're eager to watch immediately or prefer to download and enjoy it later offline, Movies123 gives you total flexibility with its intuitive, user-friendly platform.
There are no accounts to create, no subscriptions to manage, and absolutely no hidden charges. Just click and start watching—fast, easy, and secure. From smooth playback to excellent video clarity, Children of the Sea is just a few taps away from being part of your movie night. Skip the wait and join millions of viewers already enjoying their favorite films without limits. Start watching Children of the Sea today—completely free and on your own terms.