Cool down and thrill up at Tokyo Summerland — one of Japan's most beloved leisure parks, combining a spectacular indoor water park, a seasonal outdoor pool complex, and a full amusement park into a single all-day destination in the Akiruno area of western Tokyo. Cruise Japan's longest lazy river, plunge through giant water slides, take on the exhilarating MONSTER STREAM rafting experience, and ride a classic rollercoaster through forested scenery — all in one outstanding value 1-day pass for the whole family.
Key Highlights
- Enjoy the Adventure Dome — a year-round tropical indoor pool complex with water slides, a 600-litre waterfall pool, Cobalt Beach shallow pool, jacuzzis, and a warm spa available in any weather
- Make your way down the Great Journey — Japan's longest lazy river at 650 metres
- Experience MONSTER STREAM
- Explore Fun Fun Town amusement park and Wild Mountain — rollercoaster, Ferris wheel, merry-go-round, teacups, and more adrenaline-fuelled
- Visit the Adventure Lagoon outdoor pool complex
About Tokyo Summerland Ticket
Tokyo Summerland is a sprawling leisure facility in the Akiruno area of western Tokyo — a park that successfully combines a year-round tropical indoor pool complex, a spectacular seasonal outdoor water park, and a classic amusement park into a single all-day destination that has been delighting families, groups, and thrill-seekers since the 1980s. The 1-day pass covers admission to both pool areas and unlimited rides, making it one of the most comprehensive and best-value leisure day experiences available within Tokyo.
The Adventure Dome is the indoor pool complex — a tropical-atmosphere dome open year-round that keeps visitors cool and entertained regardless of the weather outside. Inside, the Cobalt Beach is a large, crystal-clear shallow pool perfect for children, the Rock Beach area and Fruit Island add variety and colour, the Tiki Slides deliver water slide thrills in the dry heat of the dome, and the warm spa and jacuzzi pools provide a relaxing counterpoint to the more energetic attractions. The giant 600-litre waterfall splashing into the main pool is one of the dome's most popular and most photographed features.
The Adventure Lagoon outdoor pool complex opens from early July to late September — and this is where Tokyo Summerland truly comes into its own during the summer season. The Great Journey lazy river at 650 metres is one of Japan's longest — a slow, meandering, inflatable tube ride through lush scenery that is endlessly popular with all ages. DEKASLA is a thrilling group ride for four to five people on an inflatable boat down a water course with a dramatic 20-metre drop. The newest star attraction is MONSTER STREAM — a powerful fast-flowing river-like experience on special floats that combines elements of a wave pool and a lazy river in a genuinely exhilarating ride that has quickly become one of the park's most talked-about experiences. The Monkey Float challenge — navigating across the outdoor pool by holding onto criss-crossed netting — adds a uniquely interactive and often hilarious dimension to the outdoor water park.
Fun Fun Town and Wild Mountain complete the park's offering with a full amusement park experience — a winding rollercoaster through natural forested scenery, a Ferris wheel, merry-go-round, teacup rides, and a range of attractions from gentle family rides to more intense thrills. Book your Tokyo Summerland ticket now on Thrillark.
The Adventure Dome is the indoor pool complex — a tropical-atmosphere dome open year-round that keeps visitors cool and entertained regardless of the weather outside. Inside, the Cobalt Beach is a large, crystal-clear shallow pool perfect for children, the Rock Beach area and Fruit Island add variety and colour, the Tiki Slides deliver water slide thrills in the dry heat of the dome, and the warm spa and jacuzzi pools provide a relaxing counterpoint to the more energetic attractions. The giant 600-litre waterfall splashing into the main pool is one of the dome's most popular and most photographed features.
The Adventure Lagoon outdoor pool complex opens from early July to late September — and this is where Tokyo Summerland truly comes into its own during the summer season. The Great Journey lazy river at 650 metres is one of Japan's longest — a slow, meandering, inflatable tube ride through lush scenery that is endlessly popular with all ages. DEKASLA is a thrilling group ride for four to five people on an inflatable boat down a water course with a dramatic 20-metre drop. The newest star attraction is MONSTER STREAM — a powerful fast-flowing river-like experience on special floats that combines elements of a wave pool and a lazy river in a genuinely exhilarating ride that has quickly become one of the park's most talked-about experiences. The Monkey Float challenge — navigating across the outdoor pool by holding onto criss-crossed netting — adds a uniquely interactive and often hilarious dimension to the outdoor water park.
Fun Fun Town and Wild Mountain complete the park's offering with a full amusement park experience — a winding rollercoaster through natural forested scenery, a Ferris wheel, merry-go-round, teacup rides, and a range of attractions from gentle family rides to more intense thrills. Book your Tokyo Summerland ticket now on Thrillark.
Inclusions
- Admission to the Adventure Dome indoor pool and all-you-can-ride amusement park access
- Unlimited ride access to Fun Fun Town and Wild Mountain amusement park areas
- Access to MONSTER STREAM, DEKASLA, Great Journey, and all pool attractions within the pass validity
Exclusions
- Food and beverages
- Personal expenses
- Transport
Insiders' Tips
Visit on a weekday for significantly shorter queues — MONSTER STREAM, DEKASLA, and the major water slides attract the longest waits on peak summer weekends. The Adventure Lagoon outdoor pool is the highlight of the summer season from July to September — plan your visit in this window for the full experience including the Great Journey and MONSTER STREAM. Bring your own packed lunch as outside food is permitted and saves considerable time and cost versus on-site dining.
Additional Information
Operating Hours
- 9:00 AM to 6:00 PM
- Glass containers and canned drinks not permitted in the park
- Revealing swimwear not permitted
- Outside food delivery services not permitted after entry
- Smoking not permitted inside the Adventure Dome
- Wheelchair accessible in the main park areas
- Multiple restaurants and food stalls throughout the park
- Paid locker facilities available for bags and personal items
- Towel and swimwear rental available on site
Cancellation Policy
- No Cancellation and Non-refundable
Frequently Asked Questions
What is Tokyo Summerland?
Tokyo Summerland is a major leisure park in Akiruno City, western Tokyo — combining a year-round tropical indoor pool complex (Adventure Dome), a seasonal outdoor water park (Adventure Lagoon, open July to September), and a full amusement park (Fun Fun Town and Wild Mountain) in a single 1-day pass covering pool admission and unlimited rides.
What is MONSTER STREAM at Tokyo Summerland?
MONSTER STREAM is Tokyo Summerland's most exciting new attraction — a fast-flowing rafting-style river ride on special floats that combines the features of a wave pool and a lazy river with powerful currents and adventurous natural scenery. Opened in 2024, it has quickly become one of the most popular and talked-about experiences in the outdoor Adventure Lagoon area, available during the summer season from July to September.
What is the Great Journey lazy river at Tokyo Summerland?
The Great Journey is one of Japan's longest lazy rivers at 650 metres — a slow, relaxing, inflatable-tube ride that meanders through the Adventure Lagoon outdoor pool area and is consistently among the most popular attractions across all ages at the park. The lazy river is available during the outdoor summer season from early July to late September.
What is the Adventure Dome and when is it open?
The Adventure Dome is Tokyo Summerland's year-round indoor tropical pool complex — open from March to October regardless of weather — featuring the Cobalt Beach shallow pool, Rock Beach, Fruit Island, Tiki Slides, the 600-litre waterfall pool, warm spa, and jacuzzi. It is the ideal option for visitors who want the full water park experience outside of the peak summer outdoor season.
What is DEKASLA at Tokyo Summerland?
DEKASLA is a thrilling group water ride at Tokyo Summerland for groups of four to five people on an inflatable boat, featuring a dramatic 20-metre drop through a water course in the Adventure Lagoon outdoor area. It is one of the most exhilarating large-group experiences in the park and is available during the summer outdoor pool season.
Is Tokyo Summerland suitable for families with young children?
Yes — Tokyo Summerland is one of the most family-friendly leisure parks in Tokyo, with attractions ranging from the child-friendly Cobalt Beach shallow pool and gentle amusement rides to more intense thrill attractions for older children and adults. Children under 3 enter free, and most facilities are accessible for children as long as they are accompanied by a parent or guardian.
Can I bring my own food to Tokyo Summerland?
Yes — outside packed lunches are permitted inside Tokyo Summerland and can be consumed in the park's designated picnic areas. Glass containers and canned drinks are not permitted, and food delivery services cannot be ordered after entering the park. Multiple restaurants and food stalls are also available throughout the park for those who prefer to eat on site.
When is the best time to visit Tokyo Summerland?
Weekday visits offer significantly shorter queues at the most popular attractions, particularly during the peak summer season from July to September when Tokyo Summerland is at its busiest. The summer outdoor pool season from early July to late September is the most complete and exciting time to visit — including access to MONSTER STREAM, DEKASLA, the Great Journey, and the full Adventure Lagoon complex.
How do I get to Tokyo Summerland?
Tokyo Summerland is located in Akiruno City on the western edge of Tokyo — accessible by taking the JR Ome Line to Akigase Station, followed by a short bus ride or taxi to the park entrance. Visitors arriving by car can access the park via the Chuo Expressway, with on-site paid parking available.
Do I need to book Tokyo Summerland tickets in advance?
Advance booking is strongly recommended, particularly for summer weekends and school holiday periods when the park is at peak capacity and wait times at the most popular attractions can be significant. Booking through Thrillark saves up to 18% on the standard rate with instant confirmation and your 1-day pass secured before you travel. Always check the official Tokyo Summerland website for the current operating calendar as the park has specific closed days throughout the season.
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