Ishin Hyakunen Memorial Park Ikoi Water Plaza

About this spot

The free splash pool Ishin Hyakunen Memorial Park Ikoi Water Plaza, in Ishin Hyakunen Memorial Park in Yamaguchi City. In 2026 (Reiwa 8) it is open from Saturday, April 25 to Sunday, September 27, from 10:00 to 18:00. The biggest draw is the flowing water slide, which children ride over and over until a queue forms. There is also a small fountain, so children still too young for the slide can splash around it. A barrier-free slope leads down to the waterside, so strollers and wheelchairs can get right up to the water, which is a major feature. Moving between the adjoining large playground and children's center, you can stay a long time with breaks in between.

Season & hours

Tips

It is closed on Friday mornings for cleaning. It also closes in bad weather such as heavy rain, so check the official website for that day's opening status before you set out. Pets, bicycles and skateboards are not allowed. Shade is limited, so lay a picnic sheet under the trees and take breaks. For children still in diapers, bring swim diapers, and after playing, rinse feet well at the tap.

Best time to visit

About 2 hours 45 minutes. After 15:00, when the sun softens, is especially comfortable, and you can play until 18:00

Access & map

山口市・維新百年記念公園