“Until whenever.”
Watch Chiikawa the Movie: The Secret of the Mermaid Island for Free in 123Movies
Chiikawa the Movie: The Secret of the Mermaid Island (2026) – Official Trailer, Cast & Details
Chiikawa the Movie: The Secret of the Mermaid Island at a Glance
Chiikawa the Movie: The Secret of the Mermaid Island is a 2026 animation, family, adventure and fantasy film from director Kei Oikawa, featuring Haruka Aoki, Makoto Tanaka and Ari Ozawa. It has a runtime of 1 hour 39 minutes and was released on July 24, 2026. Chiikawa the Movie: The Secret of the Mermaid Island holds an average TMDB user score of 7.3/10 from 8 votes.
Watch the official Chiikawa the Movie: The Secret of the Mermaid Island trailer for free in 123Movies below.
1080p HD • Free YouTube Stream
Storyline & Synopsis
Chiikawa and friends set off on a whimsical summer adventure to a mysterious island said to hide a long-lost mermaid secret. What starts as a fun getaway quickly turns into a heartwarming journey filled with surprises, gentle thrills, and adorable chaos. With sparkling seas, strange legends, and unforgettable encounters, the trio learns about courage, friendship, and the magic hidden in small moments.
Where “Chiikawa the Movie: The Secret of the Mermaid Island” Fits in the 123Movies Catalog
Haruka Aoki
Chiikawa (voice)
Makoto Tanaka
Hachiware (voice)
Ari Ozawa
Usagi (voice)
Yuka Iguchi
Momonga (voice)
Takayuki Asai
Kurimanju (voice)
Yuma Uchida
Rakko (voice)
Miyuri Shimabukuro
Shisa (voice)
Momo Harumi
Furuhonya (voice)
Tsuguo Mogami
Shimajiro (voice)
Minori Suzuki
Siren (voice)
Momoka Terasawa
Hitoha (voice)
Sayumi Suzushiro
Futaba (voice)
Frequently Asked Questions About Chiikawa the Movie: The Secret of the Mermaid Island
What is the release date of Chiikawa the Movie: The Secret of the Mermaid Island?
Chiikawa the Movie: The Secret of the Mermaid Island was released on July 24, 2026.
How long is Chiikawa the Movie: The Secret of the Mermaid Island?
Chiikawa the Movie: The Secret of the Mermaid Island runs 1 hour 39 minutes (99 minutes).
Who is in the cast of Chiikawa the Movie: The Secret of the Mermaid Island?
Chiikawa the Movie: The Secret of the Mermaid Island stars Haruka Aoki as Chiikawa (voice), Makoto Tanaka as Hachiware (voice), Ari Ozawa as Usagi (voice) and Yuka Iguchi as Momonga (voice). The cast also includes Takayuki Asai, Yuma Uchida, Miyuri Shimabukuro and Momo Harumi.
Who directed Chiikawa the Movie: The Secret of the Mermaid Island?
Chiikawa the Movie: The Secret of the Mermaid Island was directed by Kei Oikawa. The screenplay is credited to Nagano.
What kind of movie is Chiikawa the Movie: The Secret of the Mermaid Island?
Chiikawa the Movie: The Secret of the Mermaid Island is listed on TMDB as a mix of animation, family, adventure and fantasy.
What is the TMDB score of Chiikawa the Movie: The Secret of the Mermaid Island?
On TMDB it has an average user score of 7.3/10 from 8 votes.
Where can I watch the Chiikawa the Movie: The Secret of the Mermaid Island trailer?
You can watch the official teaser trailer for Chiikawa the Movie: The Secret of the Mermaid Island, "Teaser Trailer (Singapore)", for free on this 123Movies page. It is embedded from YouTube.
What should I watch if I liked Chiikawa the Movie: The Secret of the Mermaid Island?
Movies TMDB recommends alongside Chiikawa the Movie: The Secret of the Mermaid Island include Ponyo (2008), Children of the Sea (2019), xxxHOLiC The Movie: A Midsummer Night's Dream (2005), The Wonderland (2019) and Fullmetal Alchemist: The Final Alchemy (2022).
Can I stream the full movie of Chiikawa the Movie: The Secret of the Mermaid Island on 123Movies?
No. 123Movies only shows official trailers and title information. Full movies are not hosted or linked on this site.
Ponyo
Children of the Sea
xxxHOLiC The Movie: A Midsummer Night's Dream
The Wonderland
Fullmetal Alchemist: The Final Alchemy
Brave Story
Lu Over the Wall
Crayon Shin-chan: Honeymoon Hurricane ~The Lost Hiroshi~
Escaflowne: The Movie
Whisper of the Heart
Belle's Magical World
