25m modified pool and two water slides, children's pool — enjoy water play until evening

About this spot

Operating from July 18 (Saturday) to August 23 (Sunday), 2026, from 10 a.m. to 4 p.m., this is Nagano City's outdoor leisure pool (with some closed days during the period). The centerpiece is the 25m modified pool where swimmers and water-play-focused children can enjoy at their own pace. Two water slides (44m cylindrical and 63m semi-cylindrical) are thrilling and hugely popular with elementary school kids. Families with small children can feel safe with a shallow children's pool and water-play area; the pool is designed so the whole family can enjoy water activities suited to each person's age. Admission is very reasonable at 150 yen for elementary/middle school students and 450 yen for adults, with same-day tickets only adding to the casual appeal. Entering around noon lets you enjoy a full 4 hours of water play until closing at 4 p.m.

Season & hours

Tips

Operating hours are 10 a.m. to 4 p.m.; closed days are scheduled during the season, so check Nagano City's official website for the latest opening dates before visiting. Only same-day tickets are available. Extended direct sunlight means taking frequent breaks in shade or under umbrellas is important. The pool deck is slippery, so remind children to move slowly without running.

Best time to visit

Entering at noon allows a full 4 hours of play until 4 p.m. closing.

Access & map

Nagano City · Aogaki Park Municipal Pool