10 parks in Ohio with outdoor water-park areas, from 9 operators. Outdoor and indoor-plus-outdoor water parks. Outdoor areas are seasonal; many close after Labor Day or by early October and publish next season’s dates in spring.
Adventure Reef closed for the 2026 season after Labor Day, September 7. City-run 3-acre outdoor water park in Kettering with slides, a splash pad and a water playground. It is seasonal, with lower daily rates for Kettering residents.
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View park detailsAn 18-acre outdoor summer water park at Cedar Point in Sandusky, Ohio. Park tickets and cabana reservations are sold online.
Park tickets sold online
View park detailsThe park's published season ends on Labor Day (September 7 in 2026) each year, so its 2026 season is over. Check the official website for next season's dates. City-run outdoor aquatic center in Huber Heights, Ohio, with a lazy river, water slides and an activity pool. It opens each summer from Memorial Day weekend through Labor Day weekend, with day passes.
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View park detailsCity-run outdoor aquatic center at Indian Acres Park in Marietta, Ohio, with a lazy river, a speed slide, a spiral slide and a pirate-ship play area. It opens for a summer season.
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View park detailsThe Plain Township Aquatic Center pool has closed for the 2026 season. Township outdoor aquatic center in New Albany with a body slide, a tube slide and a gated children's play area with slides. It sells daily admission and memberships and has closed for the 2026 season.
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View park detailsCity family aquatic center in Sharonville with flume slides, a zero-depth play pool and a diving pool. Entry is by membership only, sold to residents, local businesses and non-residents; no day passes.
Membership required, no day passes
View park detailsWater park inside Kings Island with more than 30 water slides. Entry is included with a Kings Island ticket or season pass, so there is no separate water park ticket.
Included with Kings Island ticket
View park detailsFamily-owned water park with a safari zoo, go-karts and bumper boats in Port Clinton, Ohio. Daily tickets are sold online and at the gift shop ticket desk.
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View park detailsThe city page says the aquatic center is closed for the season. City-run outdoor aquatic center in Westlake with two speed slides, a lazy river, an activity pool and a splash pad. Open in summer to pool members or visitors paying a daily guest fee.
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View park detailsZoombezi Bay has closed for the 2026 season and plans to reopen in May 2027. Outdoor water park next to the Columbus Zoo in Powell, open Memorial Day to Labor Day. A one-day ticket also gets you into the zoo. It has closed for 2026 and reopens in May 2027.
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