Iwanuma Children's Play and Exchange Center miiina Water Play Plaza (岩沼市子どもの遊びと交流基地 miiina みずあそび広場)
Flow of the course
About 40 min from the previous stop
About 215 min here
About this spot
This is the ‘Iwanuma Children's Play and Exchange Center miiina Water Play Plaza’ in Iwanuma City, Miyagi Prefecture. Outdoors there are water-play and mud-play areas, where kids can go all out at the play they love most — scooping up water and kneading mud. Indoors there is water play equipment introduced for the first time in the Tohoku region, along with a ball pit, in an indoor play area covering about 2,300 square meters. Because there are water play spots both outdoors and indoors, your plans won't be thrown off by sudden rain or overly strong sunlight. Admission is 300 yen for city residents and 600 yen for those from outside the city; the facility is open from 9:00 a.m. to 5:00 p.m., extended to 6:00 p.m. in summer. It is closed on the second and fourth Tuesdays and during the New Year holidays, so plan around those dates.
Season & hours
Name: 岩沼市子どもの遊びと交流基地 miiina みずあそび広場
Date & time: 開設期間は未発表 (typically は夏休み期間) ※施設は9:00–17:00(夏季18:00まで)、第2・第4火曜と年末年始休館
Venue: 岩沼市・岩沼市子どもの遊びと交流基地 miiina
Tips
The opening period has not yet been announced, and it typically runs during the summer vacation season in past years. Please check Iwanuma City's information for the day's status before heading out. It gets muddy outdoors, so bring extra changes of clothes and be sure to prepare plastic bags for dirty clothes and shoes. There is a rule requiring you to rinse off the mud thoroughly before moving indoors, so please follow the on-site instructions. Even where the water is shallow, don't take your eyes off children — an adult should always stay with them. The closed days are the second and fourth Tuesdays, so if you're planning to visit on a Tuesday, be sure to check the date.
Best time to visit
About 3 hours and 35 minutes. The afternoon, when the sunlight softens, is recommended.
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岩沼市・岩沼市子どもの遊びと交流基地 miiina
Model course featuring this spot

2026 Full-Day Course: Iwanuma Children's Play and Exchange Center miiina Water Play Plaza
Miyagi
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