At 25,000 sq. ft., the Grand Harbor is a comparatively small indoor water park. It doesn't have the water coasters, wave pools, and other bells and whistles of larger parks, but it does offer a decent assortment of attractions and ways to get wet.
The park capitalizes on a Mississippi River theme. For example, the water play structure in the center of the park is called the "Huck Finn II," and its steam whistle blows every few minutes to announce the tipping bucket is about to dump its load of water.
The resort also includes a restaurant, an arcade, and a conference center. Many of its nearly 200 guest rooms come with fireplaces and family suite configurations.
Port of Dubuque, Iowa
Indoor Water Park Square Footage:
Water park open to registered guests of the hotel only.
Indoor Water Park Features:
Lazy river, body slides, tube slide, interactive water play structure with tipping bucket, and whirlpool spas.
Official Web Site: