Sam SmithWater parks are more than just places to cool off — they’re sprawling playgrounds of slides, wave pools, lazy rivers, and record-breaking attractions that draw millions of visitors each year. From the massive outdoor complexes in Wisconsin Dells and Texas to the cutting-edge indoor resorts in Pennsylvania and Ohio, the United States is home to some of the largest and most innovative water parks in the world. This list highlights the 50 biggest water parks across the country, ranked by size, number of attractions, and overall capacity, showcasing the destinations that define aquatic adventure.
Top 50 Biggest Water Parks In The US
1. Noah’s Ark Waterpark (Wisconsin Dells, WI)
Spanning 70 acres, Noah’s Ark is America’s largest outdoor waterpark. It boasts over 50 slides, two massive wave pools, and multiple lazy rivers. Signature attractions include the Black Anaconda, the country’s largest water coaster, and thrilling rides like Scorpion’s Tail. Family areas, kiddie pools, and themed zones make it versatile for all ages. Its sheer size and variety cement Wisconsin Dells as the “Waterpark Capital of the World,” drawing millions of visitors each summer season.
2. Schlitterbahn Waterpark (New Braunfels, TX)
Covering more than 70 acres across four interconnected sections, Schlitterbahn New Braunfels is a Texas legend. Known for its innovative Transportainment river system, guests float between rides without leaving the water. Highlights include the Master Blaster uphill water coaster, Boogie Bahn surf ride, and heated pools. With natural spring-fed water and themed areas, it blends resort relaxation with adrenaline thrills. Its pioneering attractions have influenced waterpark design worldwide, making it one of America’s most iconic aquatic destinations.
3. Disney’s Typhoon Lagoon (Lake Buena Vista, FL)
Typhoon Lagoon immerses guests in a tropical paradise shaped by a “storm-ravaged” theme. At nearly 60 acres, it features one of the world’s largest wave pools, capable of producing six‑foot swells. Attractions include Crush ’n’ Gusher, a thrilling water coaster, and Shark Reef, where visitors once snorkeled among tropical fish. Family raft rides, lazy rivers, and kid zones balance the thrills. As part of Walt Disney World Resort, it combines imaginative storytelling with aquatic adventure, ensuring unforgettable experiences.
4. Disney’s Blizzard Beach (Lake Buena Vista, FL)
Blizzard Beach transforms a ski resort into a water wonderland, complete with chairlifts and snow‑themed slides. Covering about 60 acres, it’s home to Summit Plummet, one of the tallest and fastest freefall slides in the world. Family raft rides, slalom courses, and a lazy river add variety. The playful theme of “melting snow” sets it apart from traditional waterparks. As part of Walt Disney World, it blends Disney creativity with extreme thrills, making it a standout Florida attraction.
5. Kalahari Resort (Poconos, PA)
The Poconos Kalahari Resort houses one of America’s largest indoor waterparks at 220,000 square feet, plus expansive outdoor areas. Attractions include the FlowRider surf simulator, Victoria Falls raft ride, and numerous thrill slides. Its African safari theme adds immersive character. Beyond rides, the resort offers luxury accommodations, dining, and family entertainment. Year‑round operation ensures guests enjoy aquatic fun regardless of weather. Its scale and amenities make it a premier indoor waterpark destination in the northeastern United States.
6. Kalahari Resort (Sandusky, OH)
Sandusky’s Kalahari Resort features a 173,000‑square‑foot indoor waterpark with outdoor expansions. Guests enjoy surfing simulators, wave pools, raft rides, and high‑speed slides. The African‑inspired theme creates a vibrant atmosphere, while the resort’s hotel, restaurants, and convention spaces make it a full vacation hub. Year‑round indoor attractions ensure consistent appeal, while outdoor areas expand summer fun. Known for blending thrill rides with family‑friendly zones, it remains one of Ohio’s most popular destinations for aquatic adventure and resort relaxation.
7. Aquatica Orlando (Orlando, FL)
Aquatica Orlando, operated by SeaWorld, spans 59 acres and blends marine life with water thrills. Its signature Dolphin Plunge sends riders through clear tubes surrounded by Commerson’s dolphins. Other highlights include racing slides, wave pools, and lazy rivers with varying speeds. Family raft rides and kid zones round out the offerings. The park emphasizes vibrant theming and animal encounters, creating a unique mix of aquatic fun and wildlife appreciation. Its innovative attractions make it a standout Florida waterpark.
8. Water World (Federal Heights, CO)
Water World in Colorado covers 70 acres and offers more than 50 attractions, making it one of America’s largest outdoor waterparks. Signature rides include Voyage to the Center of the Earth, a dark‑ride water adventure, and multiple wave pools. Lazy rivers, family raft rides, and thrill slides provide variety for all ages. Its sheer scale and diverse lineup make it a regional powerhouse. With themed zones and innovative attractions, Water World delivers both adrenaline and family‑friendly aquatic fun.
9. Splashin’ Safari (Holiday World, IN)
Splashin’ Safari, part of Holiday World in Santa Claus, Indiana, spans about 70 acres. It’s renowned for Wildebeest and Mammoth, two of the world’s longest water coasters. Guests also enjoy Congo River, wave pools, and numerous slides. The park balances extreme thrills with family‑friendly attractions, including kiddie play areas and lazy rivers. Its integration with Holiday World theme park enhances the experience, offering a full day of entertainment. Splashin’ Safari is a Midwest gem for waterpark enthusiasts.
10. Wet ’n’ Wild Emerald Pointe (Greensboro, NC)
Emerald Pointe, covering over 40 acres, is North Carolina’s largest waterpark. It features more than 36 rides and attractions, including Daredevil Drop, a towering speed slide, and family raft rides. Wave pools, lazy rivers, and children’s play areas ensure appeal for all ages. Known for its variety and accessibility, it attracts visitors from across the Southeast. The park’s balance of thrill rides and family zones makes it a staple summer destination, offering refreshing fun in Greensboro’s warm climate.
Numbered Table: 50 Largest Water Parks in the U.S.
| # | Water Park | Location | Size | Key Features |
|---|---|---|---|---|
| 1 | Noah’s Ark Waterpark | Wisconsin Dells, WI | 70 acres | 51+ slides, 2 wave pools, Black Anaconda water coaster |
| 2 | Schlitterbahn (New Braunfels) | New Braunfels, TX | 70+ acres | Master Blaster, Transportainment rivers, surf ride |
| 3 | Disney’s Typhoon Lagoon | Lake Buena Vista, FL | ~60 acres | Giant wave pool, Crush ‘n’ Gusher |
| 4 | Disney’s Blizzard Beach | Lake Buena Vista, FL | ~60 acres | Summit Plummet, ski theme |
| 5 | Kalahari Resort (Poconos) | Pocono Mountains, PA | 220k sq ft + outdoor | Indoor mega-park, FlowRider |
| 6 | Kalahari Resort (Sandusky) | Sandusky, OH | 173k sq ft + outdoor | Indoor surfing, wave sim |
| 7 | Aquatica Orlando | Orlando, FL | 59 acres | Dolphin Plunge, wave pool |
| 8 | Water World | Federal Heights, CO | 70 acres | 50+ attractions, thrill rides |
| 9 | Splashin’ Safari (Holiday World) | Santa Claus, IN | ~70 acres | Mammoth & Wildebeest coasters |
| 10 | Wet ’n’ Wild Emerald Pointe | Greensboro, NC | 40+ acres | 36+ rides |
| 11 | Hurricane Harbor (Arlington) | Arlington, TX | 47 acres | Tornado, wave pool |
| 12 | Hurricane Harbor (Los Angeles) | Valencia, CA | 22 acres | Speed slides, Tornado |
| 13 | Adventure Island | Tampa, FL | 30 acres | Colossal Curl, wave pool |
| 14 | Volcano Bay (Universal) | Orlando, FL | 28 acres | Krakatau aqua coaster |
| 15 | Knott’s Soak City | Buena Park, CA | 15 acres | Speed slides, lazy river |
| 16 | Rapids Water Park | Riviera Beach, FL | 30+ acres | 35+ slides |
| 17 | Splash Country (Dollywood) | Pigeon Forge, TN | 35 acres | RiverRush coaster |
| 18 | Magic Waters Waterpark | Cherry Valley, IL | 70 acres | Wave pool, Vortex |
| 19 | Lost Island Waterpark | Waterloo, IA | 45 acres | 20+ slides |
| 20 | Raging Waters San Dimas | San Dimas, CA | 50 acres | 50+ attractions |
| 21 | Raging Waters San Jose | San Jose, CA | 23 acres | Wave pool, Dragon’s Den |
| 22 | Castaway Bay | Sandusky, OH | 38k sq ft | Indoor waterpark |
| 23 | Camelback Resort Indoor Park | Tannersville, PA | 170k sq ft | Surf simulator, adventure river |
| 24 | Great Wolf Lodge (largest sites) | Multiple | 50k–100k sq ft | Indoor family slides |
| 25 | Hurricane Harbor (New Jersey) | Jackson, NJ | 45 acres | Tornado, Bonzai Pipelines |
| 26 | Hawaiian Falls (largest locations) | Garland/Roanoke, TX | 15–25 acres | Slides, wave pools |
| 27 | Waldameer Water World | Erie, PA | 15 acres | Slides, wave pool |
| 28 | Hyland Hills Water World | Federal Heights, CO | 70 acres | Duplicate listing / same as #8 |
| 29 | NRH2O Family Water Park | North Richland Hills, TX | 20 acres | Wave pool, lazy river |
| 30 | Zoombezi Bay | Powell, OH | 22.7 acres | Zoo-connected waterpark |
| 31 | Big Surf Waterpark | Tempe, AZ | 15 acres | First U.S. wave pool |
| 32 | SunSplash Waterpark | Cape Coral, FL | 14 acres | Family slides |
| 33 | Massanutten Indoor WaterPark | Massanutten, VA | 40k sq ft | Indoor slides |
| 34 | Sahara Sam’s Oasis | West Berlin, NJ | 70k sq ft | Indoor/outdoor |
| 35 | Hurricane Harbor (Chicago) | Gurnee, IL | ~20 acres | Slides, wave pool |
| 36 | Soak City at Kings Island | Mason, OH | 33 acres | Wave pool, lazy river |
| 37 | Hurricane Harbor (Atlanta) | Austell, GA | ~20 acres | Tornado, wave pool |
| 38 | Water Safari | Old Forge, NY | ~50 acres | 50 attractions |
| 39 | Oceans of Fun | Kansas City, MO | 64 acres | Wave pool, lazy river |
| 40 | Schlitterbahn Galveston | Galveston, TX | 26 acres | Transportainment river |
| 41 | Schlitterbahn Kansas City | Kansas City, KS | 33 acres | Multiple slides |
| 42 | Splash Summit Waterpark | Pigeon Forge, TN | 15 acres | Rebranded, family slides |
| 43 | Nickelodeon Universe Water Park | Bloomington, MN | Indoor | Themed water attractions |
| 44 | Jay Peak Pump House | Jay, VT | 50k sq ft | Surf sim, lazy river |
| 45 | Epic Waters Indoor Park | Grand Prairie, TX | 80k sq ft | Retractable roof |
| 46 | Kroc Center Waterpark | Phoenix, AZ | Indoor/outdoor | Slides, lazy river |
| 47 | Wilderness Resort | Wisconsin Dells, WI | 500k+ sq ft | Multiple waterparks on-site |
| 48 | Kartrite Indoor Waterpark | Monticello, NY | 80k sq ft | NY’s largest indoor |
| 49 | Fallsview Indoor Waterpark* | Niagara Falls, ON | 3 acres | Large indoor complex |
| 50 | Coco Key Water Resort | Multiple | 50k+ sq ft | Indoor family slides |
Closing
Whether you’re chasing the thrill of a towering water coaster, floating along a lazy river, or enjoying family-friendly splash zones, America’s largest water parks offer something for everyone. These parks aren’t just summer escapes — many have evolved into year-round resorts with indoor complexes, themed hotels, and signature rides that set global records. From coast to coast, they represent the ultimate blend of fun, innovation, and scale, making them must-visit destinations for water lovers of all ages.