About Splash Down Dunes

Splash Down Dunes is Northwest Indiana’s premier water park, offering a full day of fun for the entire family! On the shores of Lake Michigan and just one mile from Indiana Dunes State Park, Splash Down Dunes offers exciting, free-falling, twisting, curving water thrill rides and a giant wave pool to surf and splash! We feature over thirteen clean and fun water slides – making Splash Down Dunes the largest water theme park in Indiana!

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