24 parks in Illinois with outdoor water-park areas, from 23 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.
Atcher Island is closed for the season until next summer. Outdoor park district water park in Schaumburg, Illinois, with slides and a sprayground. Daily fees are lower for residents; it is closed until next summer.
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View park detailsThe water park is closed for the 2026 season. Outdoor park district water park in Bartlett, Illinois, formerly Bartlett Aquatic Center. Seasonal, with daily admission and season passes.
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View park detailsThe aquatic center is closed for the season. Park district outdoor aquatic center in Urbana with three water slides including a drop slide. Day admission is sold at the pay window, with lower rates for residents.
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View park detailsThe park district says Cypress Cove is closed for the season and will post 2027 information early in 2027. Park district outdoor aquatic park in Woodridge, Illinois with resident and nonresident day admission. It runs in summer only; next season details are due in early 2027.
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View park detailsThe park district says DragonLand is currently closed for the season; the 2026 season ended August 9. Outdoor park-district water park in Pekin, Illinois, with two water slides and a zero-depth play area. It runs a summer season only, with daily admission or season passes.
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View park detailsThe published 2026 season for the extended lap swim, AquaFit and splash-pad schedule ended September 11, 2026. Check the official calendar for the next season. Park district outdoor aquatic park in Highland Park with water slides, a drop slide and a water playground. It runs in summer; members and day-pass visitors can enter.
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View park detailsOutdoor water park beside Six Flags Great America in Gurnee, Illinois, sold with its own one-day Hurricane Harbor ticket. It has slides, lazy rivers, kids play areas and cabana rentals.
Hurricane Harbor day ticket
View park detailsOutdoor park district water park in Itasca, Illinois, open in summer. Daily admission is sold in person at the gate, with a discount for residents holding an ID card.
Daily admission sold in person
View park detailsMystic Waters is closed for the 2026 season. Park district outdoor water park in Des Plaines with two 37-foot slides, drop slides and a lazy river. Daily admission is sold, with lower rates for Des Plaines residents.
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View park detailsThe home page thanks visitors for a great summer, indicating the season has ended. Park-district outdoor aquatic park in St. Charles with body, drop, tube, racer and freefall slides, a lazy river and splash pads. It is seasonal, with lower daily rates for residents.
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View park detailsPark district aquatic park in Bolingbrook, Illinois, with an outdoor summer water park and indoor pools open year-round. Drop-in rates are lower for residents.
Daily rates; resident discount
View park detailsRaging Waves is closed for the season; 2027 season passes are on sale. Large outdoor seasonal water park in Yorkville, Illinois, near Chicago, with a wave pool and lazy river. Day tickets and 2027 season passes are sold online.
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View park detailsThe park district page says Rainbow Falls is closed for the season. Park district outdoor water park in Elk Grove Village, open late May to early September. Daily admission is sold, with lower rates for district residents.
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View park detailsCity-run outdoor pool complex in Moline with tube, drop and body slides, a lazy river and a splash pad. It is a summer facility with general admission and no season passes.
General $8, youth (3 and under) $4
View park detailsThe published 2026 season ended September 7, 2026. Check the official calendar for the next season. Park district outdoor aquatic center in Champaign, Illinois, with a lazy river, tube and body slides and a zero-depth play pool. Open swim is sold by the day during a summer season.
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View park detailsStandalone Six Flags water park east of I-90 near Rockford, Illinois, with a large wave pool and a 1,200-foot lazy river. Daily tickets, season passes and memberships are sold.
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View park detailsThe published 2026 season ended September 7, 2026. Check the official calendar for the next season. Park district outdoor aquatic facility in Skokie with a beach-entry pool, several large slides, a splash pad and a multi-level play area with a dumping bucket. It is open in summer with daily admission and season passes.
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View park detailsThe park says it is closed for the 2026 season and will reopen next year. Park district outdoor water park in Aurora, Illinois, with a long lazy river and two tube slides. Tickets are sold online and at the gate; it has closed for the 2026 season.
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View park detailsSplash Cove has closed for the 2026 season and expects to reopen in 2027. Park district aquatic center in Decatur with four slides, a lazy river and a leisure pool with a play structure. It sells daily admission and season passes and has closed for the 2026 season.
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View park detailsThe 2026 season has ended; the park plans to reopen for the 2027 season on May 29. Outdoor summer water park inside Knight's Action Park in Springfield, Illinois, with a wave pool, slides, a lazy river and a surf ride. The 2026 season has ended; 2027 opens May 29.
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