Ohio's Outdoor and Indoor Water Parks

Mason
Outdoor water park

Huge park includes an uphill water coaster, a mat racing slide, a speed slide, a wave pool, plenty of other body and tube slides, an activity pool, sand volleyball, an interactive water play structure, a zip line, and an arcade.

Sandusky
Indoor water park resort

Part of Cedar Point's vast complex, Castaway Bay is open all year long. The park is medium-sized, but is packed with attractions, including the Rendezvous Run uphill water coaster, a wave pool, water slides, an interactive water play structure, an activity pool, indoor/outdoor whirlpool spas, and a toddler's play area. The park is open to registered hotel guests as well as the general public. Find rates for Castaway Bay Resort at TripAdvisor.

Sandusky
Outdoor water park at Cedar Point

Huge water park. Requires separate admission from Cedar Point. Attractions include a wave pool, lazy river, a family raft ride, launch chamber water slides, play areas for small children, body slides, tube slides, and mat racing slides.

Newark
Indoor water park resort

Medium-sized park is open to hotel guests and offers day passes. Features include body slides, a raft ride, an activity pool, an interactive water play structure with a dump bucket, and indoor and outdoor whirlpools. Find rates for Cherry Valley Lodge at TripAdvisor.

Cincinnati
Outdoor water park, part of Coney Island amusement park

No, not that Coney Island. This Cincinnati amusement park boasts the famous Sunlite Pool, which was built in 1925 and is billed as the world's largest recirculating pool. There are water slides and other wet attractions as well. Ticket options include only the dry rides, only the water park, or combo passes to both the amusement park and the water park.
 

Sandusky
Indoor water park resort

The park is only open to Great Wolf Lodge resort guests. Features include tube slides, body slides, activity pools, 2 whirlpool spas, a lazy river, kids' play areas, an interactive play structure with a tipping bucket, and an aqua rock-climbing wall. Find rates for Great Wolf Lodge Sandusky at TripAdvisor.
 

Mason
Indoor water park resort

As with the rest of the locations in the chain, the park is only open to Great Wolf Lodge resort guests. Attractions include 11 water slides, an uphill water coaster, a bowl ride, a family raft ride, a wave pool, a lazy river, an interactive water play center with a tipping bucket, and two whirlpool spas.  Search for Great Wolf Lodge at Kings Island rates at TripAdvisor.

Sandusky
Indoor water park resort

One of the world's largest indoor water parks. It features virtually every kind of water park slide and attraction, including two surfing simulator rides, a water coaster, a lazy river, a bowl ride, a wave pool, body slides, tube slides, raft rides, a mat-racing slide, an interactive water play structure, activity pools, and indoor/outdoor whirlpool saunas. Day passes are offered. Find rates for Kalahari Sandusky at TripAdvisor.

Sandusky
Indoor water park resort

A medium-sized indoor waterpark themed to Hawaii. Day passes for the general public are available. Slides and attractions include a bowl ride, body slides, tube slides, a lazy river, an activity pool, an interactive water play structure with a dump bucket, indoor and outdoor whirlpools, and a sun deck. Find rates for Maui Sands at TripAdvisor.

Port Clinton
Outdoor water park

Small park offers water slides, tube slides, pools, water bumper boats, and an interactive play area along with go-karts, mini golf, and an arcade.

Chardon
Outdoor water park

The small outdoor water park and family entertainment center includes water slides, tube slide, lazy river, activity pool, and paddleboats as well as go-karts and an arcade.
 

Mason
Outdoor water park at Kings Island

Huge park is included with admission to Kings Island. Rides include 36 water slides, wave making surfing ride, a wave pool, a funnel ride, a lazy river, and an interactive water play structure with a dump bucket.

Maumee
Indoor water park resort

Small park is open to hotel guests and to general public with day passes. Attractions include tube and body slides, a lazy river, an activity pool, a bowl ride, a water play structure with a dump bucket, a hot tub, and a lilly pad crossing. Search for Holiday Inn Splash Bay rates at TripAdvisor.

Cincinnati
Indoor water park resort

Medium-sized park is open to hotel guests and offers day passes to the general public. Features include body slides, a raft slide, a lazy river, a wave pool, kiddie slides, an indoor/outdoor whirlpool spa, an activity pool, and an interactive play structure with a tipping bucket. The water park is part of the Ramada Plaza. Find rates for ​Ramada Plaza Cincinnati Sharonville at TripAdvisor.

Powell
Outdoor water park at the Columbus Zoo and Aquarium

Large park included with admission to the zoo. Attractions include a bowl ride, a funnel ride, body slides, tube slides, a lazy river, an action river, an interactive water play structure, and attractions for younger children.