Escape Ohio’s cold winter with a trip to one of Ohio’s best indoor water parks! There is nothing like enjoying 84° warmth with the exhilaration of speeding water slides, splashing wave pools, and relaxing hot tubs that an indoor water park can provide. A trip to an Ohio water park is exactly what families need to get rid of winter blahs and enjoy quality family time together!
We are lucky to have so many indoor water parks in Ohio to choose from. Below are our favorites!
Castaway Bay
Castaway Bay is a Cedar Fair property and my family’s favorite Ohio indoor water park.

This Caribbean theme water park is 38,000 square foot and includes a 5-story indoor waterpark with an enormous wave pool, Rendezvous Run water coaster, tube slides, indoor and outdoor hot tubs, pools, toddler areas, and Lookout Lagoon Family Funhouse with a multi-level structure with a giant bucket dump, slides, and water features. It is the perfect size for families.
Our favorite feature is the water roller coaster!
Check out our recent trip to Castaway Bay here.
Castaway Bay Winter Specials
Castaway Bay is offering many winter specials to choose from including hot dates at only $99!! All of their rooms include admission to the water park but some of the packages includes a breakfast buffet. Rooms are around $139 during the week.
For reservations, call: 419-627-2106
Kalahari Resorts
Kalahari Resorts is America’s largest water park!Kahalari boasts a 2,000 sq ft wave pool, winding lazy river, 60′ diameter bowl raft ride, mat racing slides, raft rides, the Zipcoaster, slides, hot tubs, exceptional dining options, full service spa & salon, and more. It is a great water park for all ages with many attractions for older kids and adults. Check out our recent stay here.
Our favorite ride is Flowrider, it is a challenging attraction with 50,000 gallons of water creating an ocean wave-like experience. My son, Elijah is a natural at it!
Kalahari Resorts Winter Specials
Kalahari Resorts is offering many winter specials to choose from. All of their rooms include admission to the water park but some of the packages includes trips to the spa, Kalahari gear, breakfast, dinner, restaurant credit, game room tokens, and more. Rooms are around $225 during the week.
For reservations, call: 877-525-2427
Kalahari
7000 Kalahari Drive
Sandusky, Ohio 44870
Maui Sands Resort & Indoor Waterpark
Maui Sands Resort & Indoor Waterpark is a Hawaiian themed property with exciting water attractions for the whole family.
This indoor water park is smaller than Castaway Bay and Kahalari but offers plenty of water park fun for the entire family. Enjoy their gigantic bowl-shaped slide, tube slides, bucket dump, activity tree house, lazy river, pool with basketball hoops, whirlpool, and kids play area.
My writer Megan and her family had a great time on their recent visit. Her kids loved racing side-by-side down the slides.
Maui Sands Resort & Indoor Waterpark Winter Specials
Maui Sands is offering great winter specials including day passes and weekend lodging rates at just $99 a night! Weekday prices are about $139 a night.
For reservations, call: 419-621-7357
Maui Sands Resort & Indoor Waterpark
5513 Milan Rd
Sandusky, OH 44870
Splash Harbor
Splash Harbor is an indoor waterpark located inside Comfort Inn in Bellville, Ohio.
This indoor water park is great for families. It includes a 49-foot looping water slide, dumping buckets, shooting geysers, two hot tubs (one for adults and one for families), water basketball hoops, a floating raft and kids pool area. We stopped by on a trip to Amish Country once to check it out. It looked like a LOT of fun, my kids can’t wait to visit. It is a smaller water park but that makes it perfect to keep track of your kids, especially little ones.
Splash Harbor Winter Specials
Splash Harbor has some great winter specials. The Family Fun package includes food, game room tokens, pool toys, and more. Weekday prices start at just $82 per night.
For reservations, call: 419-886-4000
Splash Harbor
855 Comfort Plaza
Bellville, OH 44813
Coco Key Water Resort
Coco Key Water Resort is a 50,000 square foot indoor water park located inside of Cherry Valley Lodge in Newark, Ohio.
Coco Key is fun for the whole family with slides for younger children, a zero-depth entry area for little swimmers under 48”, water cannons, adventure river, activity pool with water basketball, hot tub, body slides, raft water slides, and a huge bucket that dumps hundreds of gallons of water every few minutes.
We haven’t been to Coco Key Water Resort since my children were very young but we had a great time back then. Check out our review.
Coco Key Winter Specials
Coco Key Water Resort offers specials throughout the year including day passes starting at just $15 as well.
For reservations, call: (800) 788-8008
Coco Key Water Resort
2299 Cherry Valley Road
Newark, Ohio 43055