Yokohama city is celebrating the release of the movie “Chiikawa: The Secret of the Mermaid Island” with a special collaboration event running from July 24 to August 2, 2026.
The event includes a unique light show on the iconic Cosmo Clock 21 Ferris wheel, plus exclusive Chiikawa-themed photo spots and collectible stickers at various locations around the city. Visitors can enjoy these fun experiences while exploring Yokohama’s vibrant waterfront area.
About the Chiikawa Collaboration Event in Yokohama

This collaboration marks the first movie adaptation of the popular Chiikawa series by illustrator Nagano, which has gained worldwide fans through social media and anime. To celebrate, Yokohama city and local organizations have partnered to offer a range of activities featuring Chiikawa characters throughout the city.


The highlight is the Cosmo Clock 21 Ferris wheel lighting up with special Chiikawa-themed visuals each evening, creating a charming nighttime spectacle. Fans can also collect original stamp-style stickers by ordering designated menu items or services at participating stores, and enjoy numerous photo spots with beloved characters scattered around Yokohama.
Highlights
- Special Chiikawa light show on Cosmo Clock 21 Ferris wheel from 7:30 PM to 9:46 PM daily.
- Original collectible stamp-style stickers available at select locations with qualifying purchases.
- Multiple Chiikawa character photo spots set up across Yokohama’s shopping streets and landmarks.
- Collaboration runs from July 24 to August 2, 2026.
- Fireworks event on July 25 adds to the summer festivities with Chiikawa-inspired displays.
Event Details

| Item | Details |
|---|---|
| Name | “Chiikawa: The Secret of the Mermaid Island” Collaboration in Yokohama |
| Menu / items | Original stamp-style stickers; Chiikawa-themed light show and photo spots |
| Location | Cosmo Clock 21 Ferris wheel (Yokohama Cosmo World) and various locations around Yokohama city |
| Address | 2-8-1 Shinko, Naka-ku, Yokohama and multiple city locations |
| Period | July 24, 2026 – August 2, 2026 |
| Price | Sticker gifts available with purchase at participating stores; event access free |