Movies like Chiikawa the Movie: The Secret of the Mermaid Island (2026)

Name: Chiikawa the Movie: The Secret of the Mermaid Island
Released: 2026

8 films to watch after Chiikawa the Movie: The Secret of the Mermaid Island, ranked by how well they match its tone — not just its genre.

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.

1

Ponyo (2008)

Fit 74%

Shares Animation, Fantasy and Family with Chiikawa the Movie: The Secret of the Mermaid Island.

When Sosuke, a young boy who lives on a clifftop overlooking the sea, rescues a stranded goldfish named Ponyo, he discovers more than he bargained for. Ponyo is a curious, energetic young creature who yearns to be human, but even as she causes chaos around the house, her father, a powerful sorcerer, schemes to return Ponyo to the sea.
2

Lu Over the Wall (2017)

Fit 74%

Shares Animation, Adventure, Fantasy and Family with Chiikawa the Movie: The Secret of the Mermaid Island.

In a small fishing village, a gloomy middle school student named Kai meets a mermaid named Lu.
3

Children of the Sea (2019)

Fit 67%

Shares Animation, Fantasy and Adventure with Chiikawa the Movie: The Secret of the Mermaid Island.

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.
4

Howl's Moving Castle (2004)

Fit 65%

Shares Fantasy, Animation and Adventure with Chiikawa the Movie: The Secret of the Mermaid Island.

Sophie, a young milliner, is turned into an elderly woman by a witch who enters her shop and curses her. She encounters a wizard named Howl and gets caught up in his resistance to fighting for the king.
5

The Wonderland (2019)

Fit 60%

Shares Animation, Fantasy and Family with Chiikawa the Movie: The Secret of the Mermaid Island.

The story follows Akane, a girl with no self-confidence. On the day before her birthday, she meets a mysterious alchemist, Hippocrates, and his student, Pipo, who both tell her they're on a mission to save the world. Together, they set out from the basement for "Wonderland," and Akane finds herself labelled Wonderland's savior.
6

Summer Wars (2009)

Fit 49%

Shares Animation with Chiikawa the Movie: The Secret of the Mermaid Island.

Teenage math whiz Kenji Koiso agrees to take a summer job at the Nagano hometown of his crush, Natsuki. When he arrives, he finds that her family have reunited to celebrate the 90th birthday of their matriarch. His job: pretend to be Natsuki's fiancé. Meanwhile, his attempt to solve a mathematical equation causes a parallel world's collision with Earth.
7

xxxHOLiC The Movie: A Midsummer Night's Dream (2005)

Fit 42%

Shares Animation and Fantasy with Chiikawa the Movie: The Secret of the Mermaid Island.

Invited to a wealthy client's mansion, time-traveling witch Yuko and her companions arrive to find a group of collectors assembled to participate in a mysterious auction. And the mystery only deepens when the collectors go missing one by one. As more guests disappear and strange occurrences abound, Yuko and her friends realize they must solve the mystery before they vanish as well.
8

Sailor Moon SuperS: The Movie - Black Dream Hole (1995)

Fit 38%

Shares Animation and Fantasy with Chiikawa the Movie: The Secret of the Mermaid Island.

The wicked Badiyanu has come to capture all Earth's children to gain enough power to absorb the planet in her Black Dream Hole. The Black Dream Hole is in Badiyanu's castle and absorbs the dream energy from children. The more children Badiyanu kidnaps, the larger the dream hole gets. The Sailor Team must save Earth's children and prevent the Black Dream Hole from enveloping the entire planet!