What this is
Spa Resort Hawaiians — the famous indoor water park in Fukushima — is getting a full Chiikawa makeover for summer 2026, tying in with the theatrical release of 'Chiikawa the Movie: The Secret of Mermaid Island.' Running from mid-July through early September, the collaboration includes a pop-up merchandise store, photo session events with Chiikawa characters, and an admission bonus campaign. Guests who book special accommodation plans receive an exclusive Chiikawa Movie Original Waterproof Smartphone Case.
Who should go
Chiikawa fans of all ages, especially families with young children and anime collectors hunting limited-edition merchandise. The water park setting makes it a natural summer day-trip or overnight stay rather than a standalone event.
Good to know
Tickets and accommodation plans can be booked directly through the Spa Resort Hawaiians official website; foreign credit cards are generally accepted for online hotel bookings via Rakuten Travel or the resort's own site. The resort is a large all-in-one facility with pools, hot springs, and entertainment shows, so day-pass and stay-and-play packages are both available — the collaboration smartphone case is only included with select accommodation plans. The pop-up store for the Chiikawa movie is likely to have limited stock on popular items, so arrive early in the day if merchandise is a priority. Lockers are available on-site for storing belongings while using the water attractions. The resort runs its own shuttle bus from Iwaki Station, making it accessible without a car.
This event was sourced and translated from Japanese by What's On Japan. Details may change — verify with the official source before attending.