Pools, water slides and other attractions will open subsequently after passing preliminary inspection, regardless of listed open hours.
Everything from an indoor pool available open rain or shine or an outside pool known as the longest lazy river in Japan, to an amusement park filled with endless smiles and laid-back attractions! Enjoy a full day of fun that kids AND adults are sure to love!
Regardless of the weather or season, visitors can enjoy our indoor pools, including a large shallow pool and a kiddie pool!
The indoor pools are open from Saturday, March 22 through Sunday, October 19, 2025 (excluding closed days).
The longest lazy river in Japan ready for you to cruise down on your favorite inflatable.
The indoor pool will be open from Saturday, July 5 to Monday, September 29, 2025 (excluding closed days).
An amusement park that everyone is sure to love. From gut-wrenching thrillers to laid back rides, the park is packed with all your amusement park favorites and more.
Wild Mountain also includes the pool attractions “DEKASLA” and “MONSTER STREAM,” both available only during the summer season.
3/22～4/25 10:00am - 5:00pm ※Pool available until 30 minutes before closing.
4/26～7/11
Weekday 10:00am - 5:00pm (Pool available until 4:30pm)
Weekend & holidays 9:00am - 6:00pm (Pool available until 5:00pm)
| MON | TUE | WED | THU | FRI | SAT | SUN |
|---|
| Adult (ages 16-64) | Middle-School Students (ages 13-15) | Elementary School Students (ages 7-12) | Infants/Young Children (ages 3+) | |
| S1 | 2,600 yen | 2,100 yen | 1,500 yen | 1,000 yen |
| S2 | 3,600 yen | 3,200 yen | 2,600 yen | 1,900 yen |
How to Purchase: One-Day Pass (with pre-set entry date) is available by e-ticket, sold at Convenience Stores or Website (Asoview, KKday).
Tickets available up to 7 days in advance. Available slots are limited and will become unavailable once sold out.
※ Source: https://www.summerland.co.jp/coupon/
※ Not available on park closure days and winter season.
Park Entrance Fees
A pre-ordered One-Day Pass (with pre-set entry date) is required to enter the Tokyo Summerland waterpark!
Enjoy unlimited access to the pool and water attractions with the One-Day Pass!
Ticket Name: Tokyo Summerland One-Day Pass (Admission + pool + all you can ride)
How to Purchase
One-Day Pass (with pre-set entry date) is available by e-ticket, sold at Convenience Stores or Website (Asoview, KKday).
Tickets available up to 7 days in advance. Available slots are limited and will become unavailable once sold out.
A short member registration is required to purchase tickets.
The service hours on the ticket purchase screen may differ from actual amusement park hours. You can enter the facility during actual amusement park hours.
※ Not available on park closure days and winter season.
| Cars | Large Buses and Shuttles | 2-Axel Vehicles |
| 1,500 yen Weekdays/2,000 yen Weekends, Holidays, Special Events（8/12～8/15） | 3,000 yen | 300 yen |
※Parking payment is cash only.
via train or bus
| from Shinjuku Station | Fastest route: 70 mins |
|---|---|
| from Yokohama Station | Fastest route: 80 mins |
| from Hachioji Station | Fastest route: 30 mins |
Address600 Kamiyotsugi, Akiruno City, Tokyo
Phone042-558-6511 (Japanese)
