Top 50 Largest Water Parks In Illinois (2026)

Illinois may not be the first state that comes to mind for water parks, but it boasts a surprisingly diverse collection of aquatic destinations. From sprawling thrill‑ride complexes like Raging Waves to expansive municipal aquatic centers such as Mystic Waters and Pelican Harbor, the state offers both scale and variety. This guide highlights the 50 largest and most significant water parks in Illinois, organized into categories that showcase everything from major destination parks to community splash pads.

Top 50 Largest Water Parks In Illinois

1. Raging Waves Waterpark (Yorkville)

Raging Waves is Illinois’ largest water park, spanning 58 acres with over 20 slides. Highlights include the Crocodile Mile family raft ride, the Boomerang funnel slide, and a 750,000‑gallon wave pool. Guests can relax on the quarter‑mile lazy river or explore massive kids’ play areas. Its scale and variety make it a premier summer destination, drawing families and thrill seekers alike. Raging Waves consistently ranks as the state’s aquatic leader, offering both adrenaline and family fun.

2. Splash City Waterpark (Collinsville)

Splash City is a major outdoor water park in southern Illinois, featuring high‑thrill body slides, tube rides, and a sprawling lazy river. Its large wave pool and activity areas provide fun for all ages. The park emphasizes family entertainment, with interactive play structures and shaded relaxation zones. Known for its variety and accessibility, Splash City attracts visitors from across the region. Its combination of adrenaline rides and family‑friendly attractions makes it one of Illinois’ most popular aquatic destinations.

3. Knight’s Action Park & Caribbean Water Adventure (Springfield)

Knight’s Action Park combines amusement rides with Caribbean Water Adventure, a substantial water park. Guests enjoy multiple slides, a wave pool, and a lazy river. Family play areas and themed attractions enhance the experience. Its dual focus on rides and aquatic fun makes it versatile, appealing to both thrill seekers and families. Located in Springfield, it serves as a regional entertainment hub. Knight’s Action Park’s blend of variety and scale ensures its place among Illinois’ top water destinations.

4. Mystic Waters Family Aquatic Center (Des Plaines)

Mystic Waters is one of Illinois’ largest municipal aquatic centers, rivaling private parks in scale. It features a 600,000‑gallon wave pool, a lazy river, and multiple slides. Zero‑depth play areas and interactive structures cater to younger children. Its size and variety make it a standout among public facilities, offering affordable fun with the feel of a destination park. Mystic Waters balances thrills and family entertainment, cementing its reputation as one of the state’s premier aquatic centers.

5. Pelican Harbor Indoor/Outdoor Aquatic Park (Bolingbrook)

Pelican Harbor is unique in Illinois for its large indoor and outdoor components. Year‑round attractions include slides, pools, and play structures inside, while summer expansions add a wave pool, lazy river, and outdoor slides. Its versatility ensures appeal in all seasons, making it a community favorite. Families enjoy themed zones and interactive features, while thrill seekers tackle high‑speed slides. Pelican Harbor’s scale and dual design make it one of Illinois’ most significant aquatic destinations.

6. Splash Country (Carbondale)

Splash Country is the largest water park in Southern Illinois, offering multiple slides, pools, and play structures. Guests enjoy a wave pool, lazy river, and family areas designed for all ages. Its regional significance makes it a summer staple, drawing visitors from across southern Illinois and neighboring states. The park balances thrill rides with family‑friendly attractions, ensuring broad appeal. Splash Country’s scale and variety cement its reputation as the premier aquatic destination in southern Illinois.

7. Rock Springs Splash Park (Decatur)

Rock Springs Splash Park is a modern aquatic center featuring slides, diving boards, and expansive leisure pools. Guests enjoy interactive play areas, family zones, and shaded relaxation spaces. Its design emphasizes accessibility and community appeal, making it a popular destination for families in central Illinois. Though smaller than the state’s largest parks, Rock Springs offers a full day of aquatic fun. Its combination of modern facilities and family‑friendly attractions ensures its place among Illinois’ notable water parks.

8. Cypress Cove Family Aquatic Park (Woodridge)

Cypress Cove is a sprawling, well‑themed aquatic park in Woodridge. Guests enjoy slides, a lazy river, a wave pool, and sand volleyball courts. The park emphasizes family entertainment, with interactive play structures and themed zones. Its scale and variety make it a standout among municipal facilities, rivaling private parks in appeal. Cypress Cove balances thrill rides with relaxing attractions, ensuring broad appeal. Its themed design and community focus make it one of Illinois’ most beloved aquatic destinations.

9. Splash Station (Bourbonnais)

Splash Station in Bourbonnais is a popular water park featuring slides, a lazy river, and interactive play areas. Guests enjoy family zones, shaded relaxation spaces, and themed attractions. Its design emphasizes accessibility and fun for all ages, making it a regional favorite. Though smaller than Illinois’ largest parks, Splash Station offers a balanced mix of thrills and family entertainment. Its community focus and variety of attractions ensure its place among the state’s notable aquatic destinations.

10. Splash Universe (Dundee)

Splash Universe is an indoor water park resort hotel offering year‑round aquatic fun. Guests enjoy tropical‑themed slides, a wave pool, and Fort Mackenzie, an interactive water treehouse. Its resort design emphasizes immersive storytelling, appealing especially to families with children. The indoor setting ensures consistent appeal regardless of season, making it a popular destination in northern Illinois. Splash Universe’s combination of accommodation and aquatic adventure creates a complete vacation experience, cementing its place among Illinois’ top water parks.

Numbered Table: Top 50 Largest / Most Significant Water Parks in Illinois

# Water Park / Aquatic Center Location Type / Notes
1 Raging Waves Waterpark Yorkville Largest water park in Illinois
2 Splash City Waterpark Collinsville Large destination park
3 Knight’s Action Park & Caribbean Water Adventure Springfield Water park + amusement complex
4 Mystic Waters Family Aquatic Center Des Plaines Huge municipal wave pool + slides
5 Pelican Harbor Indoor/Outdoor Aquatic Park Bolingbrook Large indoor/outdoor complex
6 Splash Country Carbondale Largest in Southern Illinois
7 Rock Springs Splash Park Decatur Big aquatic center
8 Cypress Cove Family Aquatic Park Woodridge Large themed municipal park
9 Splash Station Bourbonnais Lazy river + slides
10 Splash Universe Dundee Indoor water park resort
11 The Water Works Schaumburg Large indoor water park
12 Flick Aquatic Center Schaumburg Big outdoor center
13 Centennial Park Aquatic Center Wilmette Municipal water park
14 Hindley Park Aquatic Center Wauconda Large local aqua center
15 Splash Landing Aquatic Park Plainfield Multi-pool complex
16 Camelot Park Aquatic Center Lombard Municipal aquatic park
17 Green Valley Aquatic Center Darien Large outdoor pools
18 Swim Center at Centennial Park Orland Park Major public facility
19 Riverside Aquatic Center North Riverside Municipal aquatic park
20 Bode Aquatic Center Streamwood Large outdoor/indoor pool
21 Foxboro Pool & Waterslide North Aurora Notable slide complex
22 Splash Pad Aquatic Center University Park Large municipal splash center
23 Wheeling Park District Aquatic Center Wheeling Multi-attraction complex
24 Beverly Park & Aquatic Center Chicago Large Chicago pool
25 Wilderness Falls Family Aquatic Center Bartlett Water slides + play areas
26 Sunny Hill Aquatic Park Carpentersville Family aquatic complex
27 Splash Bay Water Park Centralia Regional aquatic park
28 Riverview Park & Pool Kankakee Major community pool
29 Splash Central West Chicago Municipal park
30 Central Park Pool Normal Pool + play structures
31 Centennial Pool Homewood Large outdoor pool
32 Mountain View Aquatic Center Morton Multi-pool facility
33 The Quarry Moline Splash complex in former quarry
34 Splash Park at Lincoln Park Chicago Large splash facility
35 Gompers Park Pool Chicago Large city pool
36 Homan Square Pool Chicago Recreation center pools
37 Welles Park Pool Chicago Popular summer pool
38 Ridge Park Pool Chicago Regional city pool
39 Columbus Park Pool Chicago Outdoor pool complex
40 Warren Park Pool Chicago Large municipal pool
41 Foster Avenue Beach House & Pool Chicago Pool + lakefront area
42 Montrose Beach House & Pool Chicago Seasonal outdoor pool
43 Portillo’s Corporate Splash Areas Various Unique restaurant splash pads
44 Rainforest Cafe Water Play Gurnee Indoor play with water elements
45 KeyLime Cove Indoor Waterpark (status varies) Gurnee Former indoor resort park
46 Gurnee Park District Indoor Aquatic Center Gurnee Large rec center pools
47 Vaughan Athletic Center Indoor Pools Aurora Large indoor aquatic facility
48 McKinley Park Pool & Fitness Center Chicago Indoor/outdoor pools
49 Midtown Athletic Club Indoor Pools Bannockburn Large fitness water complex
50 Lakeshore Fitness & Aquatics Center Chicago Indoor aquatic center

Closing

From the adrenaline‑packed slides of Splash City and Knight’s Action Park to the family‑friendly indoor fun at Splash Universe and The Water Works, Illinois’ water parks reflect the state’s balance of entertainment and accessibility. Outdoor giants dominate the summer months, while indoor facilities ensure year‑round aquatic adventure. Together, these parks form a vibrant network of recreation across the state, proving that Illinois offers refreshing escapes for thrill seekers, families, and communities alike.