Tokyo Summerland Adventure Lagoon (東京サマーランド アドベンチャーラグーン) (Outdoor Pool)

Flow of the course

About this spot

Open in 2026 from Saturday, July 4 through Sunday, September 27, this is the flagship outdoor leisure pool of Tokyo Summerland (東京サマーランド) in Akiruno City. The roughly 650m-long lazy river “Great Journey” (グレートジャーニー) is plenty fun just floating along on an inner tube, and the multiple water slides bring screams and smiles from elementary schoolers to adults alike. Changing rooms are fully equipped too, so as long as you bring your change of clothes, you can enjoy it almost hands-free — a point families will appreciate. In late September, the pool operates mainly on weekends with some closed days, so checking the schedule before your visit is essential. From noon to evening, this is the climax of the day, letting you fully enjoy water play.

Season & hours

Tips

A 1-Day Pass costs ¥3,600 for adults, ¥3,200 for junior high schoolers, ¥2,600 for elementary schoolers, and ¥1,900 for young children/seniors. Operating hours are 9:00am–5:00pm (10:00am–4:00pm on weekdays), and since operation shifts mainly to weekends in late September, checking the official website's operating calendar in advance is recommended. Claim your poolside spot right after entering, and prepare your inner tube and sunscreen early. There are changing rooms on the grounds, so there's no need to worry about changing clothes on the way there or back.

Best time to visit

Entering at noon lets you secure a spot before the crowd peaks, so you can play to your heart's content until closing at 5:00pm.

Access & map

Akiruno-shi, Tokyo Summerland (東京サマーランド)