ASOBono!
An indoor playground at Tokyo Dome City, its ball pool filled with some 40,000 balls.
piggybackjapan.com
ASOBono!
SaveAn indoor playground at Tokyo Dome City, its ball pool filled with some 40,000 balls.
Babies get an area of their own, with a low slope built to encourage crawling.
MoreWhat kind of place
ASOBono! is an indoor play facility inside Tokyo Dome City, and the operator calls it one of the largest of its kind in Tokyo. The space is divided into five areas: sea, forest, town, station, and a babies-only area.
The station area keeps the full current lineup of Tomica cars and Plarail trains, the newest models included. ASOBono! reached its 15th anniversary in 2026 and has been running an anniversary event since July 11.
Sources and evidence (29)
- Some staff hold the Kodomo Partner certification issued by the Japan Educational Support Personnel Certification Association.source
- It reached its 15th anniversary in 2026 and has been running an anniversary event since July 11.source
- The rest area facing the baby room has vending machines selling drinks and baby food.source
- There is stroller parking inside, and you are asked to fold your stroller so more people can use the space.source
- ASOBono! itself does not lend strollers. Free stroller rentals are at LaQua and the Korakuen Hall building, both elsewhere in Tokyo Dome City.source
- There are rest spaces, benches, and sofas where adults can sit.source
- Across from the entrance is the GO-FUN food court, which has a kids-priority section.source
- The GO-FUN food court is open 11:00-21:00 on weekdays and 10:00-21:00 on weekends and holidays, with last order at 20:30.source
- The lawn plaza on the 1st floor of LaQua has benches and tables, and shops nearby carry baby food.source
- The building is divided into five areas: sea, forest, town, station, and a babies-only area.source
- The sea area, Adventure Ocean, is laid out as one big ocean for whole-body play.source
- The ball pool in the sea area is filled with about 40,000 colored balls.source
- A roughly 10-meter ship called the Symbol Ship floats in the ball pool, with a wheel to steer and monkey bars to hang from.source
- Children go barefoot in the sea area to keep them from slipping.source
- The large trampoline, Air Castle, is walled in with cushions and is for children who can walk on their own.source
- The sea area has a play structure of two towers joined by a bridge, 4 meters long and 2 meters high.source
- The forest area, Toy Forest, is carpeted in artificial grass, where parents and children can settle in over a board game.source
- The forest area gathers board games, learning toys, Sylvanian Families, and Ania animal figures.source
- The town area, Colorful Town, is modeled on a European streetscape for full-scale pretend play.source
- In the town area children can play shop over a counter at a donut shop, sushi bar, flower shop, pizza place, and burger stand.source
- Manabi no House is a newly built room with a wall-sized drawing corner and the latest learning toys.source
- The station area, Pleasure Station, covers about 100 square meters.source
- Tomica & Plarail Land carries the full current lineup of Tomica cars and Plarail trains, including the newest models.source
- The babies-only area, Hai Hai Garden, is designed as a courtyard and is open only to babies from 0 to 24 months.source
- Hai Hai Garden has colorful toys that work on the senses, a small sloped mound that encourages crawling, and soft flooring.source
- Hai Hai Garden has a ball pool and soft blocks sized for babies.source
- A birthday event is held on the fourth Thursday of every month.source
- A crawling race is held in which babies crawl a 3-meter course and get timed.source
- Courses on baby sign language, parenting tips, and rhythm play are offered at a special parenting-support price.source
With kidsThe part that matters
When rain or cold shuts down your outdoor plans, you can move indoors to this playground at Tokyo Dome City, built for children from babies up to age 6 and the adults with them.
Children play barefoot in a pool of about 40,000 balls, with a 10-meter ship in the middle to climb and steer.
Adults get a rest area with benches and sofas, and the baby room beside the babies-only area has a diaper changing table, a nursing room, and hot water.
Entry cannot be booked ahead, so on a busy day there can be a wait at the door.
A standard ticket does not let you step out and come back, so eat at the GO-FUN food court across from the entrance before you go in — once you are inside, leaving for lunch ends the visit.
Sources and evidence (4)
- Arrive 15-20 minutes before opening and walk straight in. Ball pool is knee-deep; ages 1-6 get the most.source
- Stroller parking free, lockers Y300. Four groups ahead at 10:30; by 13:00 every toy is in use.source
- Food court opposite the entrance, with a kids' table area. Kids' hamburger Y580, tsukemen Y1,020.source
- PAW Patrol stickers for everyone 11 Jul-31 Aug; ball-pool treasure hunt and logo charm from 19 Aug.source
By age0-1 / 2-3 / 4-6
- Ages 0-1The baby-only area "Haihai Garden" is for babies aged 0 to 24 months only. It has colourful play equipment for the senses, a low mound built on a slope to encourage crawling, and soft flooring, plus a ball pool and soft blocks made for babies. There is also a crawling race, where a baby crawls a 3-meter course and is timed.The baby room sits next to Haihai Garden and has a diaper changing table, a nursing room, and hot water. In the rest area facing the baby room there are vending machines selling drinks and baby food. Inside the facility you may only have drinks in sealed lidded containers such as water bottles, plus anything bought from the vending machines here, and eating and drinking is done in the rest space. Strollers go folded in the stroller parking inside (lockable spaces are limited). Free stroller rental is not at ASOBono! but at LaQua and the Korakuen Hall Building in Tokyo Dome City. Entry cannot be reserved, and you may have to wait when it is crowded.
- Ages 2-3In the town area "Colorful Town," children play shop face to face at a doughnut shop, a sushi bar, a florist, a pizzeria, and a burger shop. The forest area "Toy Forest" is carpeted end to end in artificial grass and gathers board games, educational toys, Sylvanian Families, and Ania figures. In the station area, "Tomica & Plarail Land" has the entire current line-up including the newest models. The giant trampoline "Air Castle" is open to children from the point they can walk on their own.In the ocean area children play barefoot, to prevent falls. Air Castle is walled in cushions, but it is for children who can walk on their own. You cannot step out and come back (only a child with a one-day kids' free pass and the adult accompanying them may leave and re-enter). There is no limit on how long you stay, but children from 6 months to elementary-school age incur an extension fee past one hour.
- Ages 4-6The ball pool in the ocean area "Adventure Ocean" is filled with about 40,000 coloured balls. A 10-meter ship, the "Symbol Ship," floats in it, with a wheel to steer and monkey bars to swing along. There is also a 4-meter-long, 2-meter-high play structure, two towers with a bridge between them. The "Manabi no House" has a drawing corner that covers a whole wall.The facility is built around preschool children from 0 to 6. A child up to elementary-school age must be accompanied by a guardian (a parent, or someone 20 or over standing in for one), and adults alone (junior-high age and up) cannot enter. The ocean area is played in barefoot. Reception closes 70 minutes before the facility does; hours are 10:00-18:00 on weekdays and 9:30-19:00 on weekends and holidays (these can change, so check the official calendar). The one-day kids' free pass is sold only on weekdays, outside set periods such as the summer holidays.
By weatherRain, heat, cold
- Rainy dayAn indoor kids' facility built mainly for preschoolers aged 0 to 6: the ocean area with its pool of some 40,000 balls and the babies-only Haihai Garden are among five areas, all inside the building.
- Hot dayNot checked yet
- Cold dayNot checked yet
Time needed2 h
How was it with your kids?
Not greatGreat
Family checks✓ easy for your family
- ElevatorElevator：not checked
- Stroller OKStroller friendly：with conditionsconditions
- RentalStroller rental：not checked
- NursingNursing space：with conditionsconditions
- ChangingDiaper changing table：with conditionsconditions
- Family WCFamily restroom：not checked
- Own foodOutside food allowed：with conditionsconditions
- EnglishEnglish support：not checked
Tap a mark for details
* Other not checked (2)
Diaper disposal bin, Kids' toilet seat & step stool
Green = we confirmed it. Gray = not checked yet. Gray with a line through = the place does not have it.
Worth a look before you go
Japanese · opens translatedFirst-hand
Arrive 15-20 minutes before opening and walk straight in. Ball pool is knee-deep; ages 1-6 get the most.
ASOBono! is best on a weekday, first thing in the morning
Japanese · opens translatedFirst-hand
Stroller parking free, lockers Y300. Four groups ahead at 10:30; by 13:00 every toy is in use.
Toy heaven at Korakuen: playing ASOBono! into the ground
Japanese · opens translatedFirst-hand
Food court opposite the entrance, with a kids' table area. Kids' hamburger Y580, tsukemen Y1,020.
Lunch with kids: after ASOBono!, the GO-FUN food court next door
Japanese · opens translatedOfficial
PAW Patrol stickers for everyone 11 Jul-31 Aug; ball-pool treasure hunt and logo charm from 19 Aug.
ASOBono! 15th Anniversary: the place where a family collects more treasures
ASOBono! · Links & reads ▾
＋ Add a link
Where to go next
With a toddler (2–3)
- Ueno ParkCity parkStroller friendlyNursing spaceDiaper changing table1.9 kmOne of Japan's first public parks, with the zoo and museums inside its grounds.
- National Museum of Nature and ScienceScience museumStroller friendlyNursing spaceDiaper changing table2.5 kmA national museum shown at full size — dinosaur skeletons, a life-size blue whale.
- Tokyo National MuseumNational museumStroller friendlyNursing spaceDiaper changing table2.5 kmJapan's oldest museum, six buildings on one site, showing almost only real objects.
- Ueno ZooZooStroller friendlyNursing spaceDiaper changing table2.1 kmJapan's first zoo, with about 300 species spread over two gardens.
- Ameyoko Shopping StreetMarket streetStroller friendlyDiaper changing table2.1 kmA market street of some 400 shops packed into 500 meters between two stations.
With a baby (0–1)
- Ueno Seiyoken HontenWestern restaurantNursing spaceDiaper changing tableElevator2.0 kmWestern food in a corner of Ueno Park, from a restaurant founded in 1872.
- Ueno ZooZooStroller friendlyNursing spaceDiaper changing table2.1 kmJapan's first zoo, with about 300 species spread over two gardens.
- Ameyoko Shopping StreetMarket streetStroller friendlyDiaper changing table2.1 kmA market street of some 400 shops packed into 500 meters between two stations.
For sights
- National Museum of Nature and ScienceScience museumStroller friendlyNursing spaceDiaper changing table2.5 kmA national museum shown at full size — dinosaur skeletons, a life-size blue whale.
- Tokyo National MuseumNational museumStroller friendlyNursing spaceDiaper changing table2.5 kmJapan's oldest museum, six buildings on one site, showing almost only real objects.
- Ueno ZooZooStroller friendlyNursing spaceDiaper changing table2.1 kmJapan's first zoo, with about 300 species spread over two gardens.
Where it is
1-3-61 Koraku, Bunkyo-ku, Tokyo 112-0004source
Before you go
- Entry cannot be reserved, and you may have to wait to get in when it is busy.source
- Anyone junior-high age or older cannot enter without a child.source
- You cannot step out and come back; only children with a one-day kids pass and the adults with them may leave and re-enter.source
- Only a limited number of the stroller spaces come with locks.source
Basics
- Fee：Children aged 6 months to elementary school pay an extension fee beyond one hour. A children's one-day pass (weekdays only, outside peak periods such as school holidays) allows re-entrysource
- Hours：Weekdays 10:00-18:00, weekends & holidays 9:30-19:00; last admission 70 minutes before closing. Hours can change — check the official calendarsource
- Time to allow：2 h
- Booking：No advance booking — you may have to wait to get in when it is busysourceOfficial booking site ↗
Basics in detail (10)
Other
- An indoor kids facility for families with young children — aimed at ages 0 to 6, before elementary school.source
- The operator describes it as one of the largest indoor kids facilities in Tokyo, made for adults to play alongside their children.source
- Children up through elementary school must be accompanied by a guardian, meaning a parent or someone 20 or older acting in that role.source
- Tokyo Dome City accepts credit cards, electronic money, and code payments.source
Hours and closures
Fees
Contact
- Questions go to the Tokyo Dome City Wakuwaku Dial at 03-5800-9999.
Once you've decided
evidence & sources (6)
- Official: Stroller friendly, Nursing space, Diaper changing table
- Official: Outside food allowed, Best-fit ages (guide)
- Official: Indoor / outdoor
Five areas divide the floor: sea, forest, town, station, and one for babies alone. The sea holds a ball pool of roughly 40,000 balls with a ten-meter ship afloat in it, plus a padded trampoline. The forest is laid with artificial grass and stocked with board games and educational toys. In the town, children play shopkeeper at a doughnut shop, a sushi counter and a pizza place. The station carries every current Tomica car and Plarail train.
| Stroller friendly | Yes | There is a stroller park inside — fold your stroller to leave it; only a limited number of lockable spaces | Web-checked | checked Aug ’26 | tokyo-dome.co.jp |
|---|---|---|---|---|---|
| Nursing space | Yes | A baby room next to the babies-only Hai-Hai Garden, with a nursing room and hot water. Vending machines for drinks and baby food are in the rest area opposite | Web-checked | checked Aug ’26 | tokyo-dome.co.jp |
| Diaper changing table | Yes | Changing table in the baby room | Web-checked | checked Aug ’26 | tokyo-dome.co.jp |
| Indoor / outdoor | Indoor | An indoor kids' facility | Web-checked | checked Aug ’26 | tokyo-dome.co.jp |
| Outside food allowed | Designated areas only | Only drinks in sealed lidded bottles and items bought from the vending machines inside (drinks, baby food) may be consumed, in the rest area | Web-checked | checked Aug ’26 | tokyo-dome.co.jp |
| Best-fit ages (guide)Extra info — guide only | Yes | Aimed at children from 0 to 6 (pre-school). The babies-only area is for 0-24 months; the trampoline is for children who can walk unaided | Web-checked | checked Aug ’26 | tokyo-dome.co.jp |
| Diaper disposal bin | Not checked yet | ||||
| Kids' toilet seat & step stool | Not checked yet | ||||
| Family restroom | Not checked yet | ||||
| Elevator | Not checked yet | ||||
| English support | Not checked yet |
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