2026 Full-Day Course: Aguri no Oka Hill Water Plaza Splash Pool

This full-day course centers on the Aguri no Oka Hill Water Plaza Splash Pool (あぐりの丘 親水広場 じゃぶじゃぶ池), spread across a hilltop in the northwest of Nagasaki City. In 2026, the official announcement on July 20 declared 'The splash pool has opened!', and the fountains run daily from 10:00 AM to 4:00 PM through the summer vacation period until August 31. The water is shallow, about 10cm deep, with the fountains connected to a babbling water channel, so even small children can walk across or follow the channel and play at their own pace. Admission and parking are both free, so playing here costs nothing, which is a nice bonus. Within the same park you'll also find an animal area where you can interact with goats, sheep, and guinea pigs, the all-weather children's play facility Aguri Dome, a spacious lawn plaza, a dog run, and even a campsite, so there's no shortage of things to do even for a full day. In the morning, interact with the animals and get active at Aguri Dome; at midday, spread out a bento on the lawn plaza; and in the afternoon, finally head to the splash pool at the Water Plaza. With hilltop views and breezes unique to this spot, you can spend a truly summer-like day here.