For reservations call: 866-690-4006

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Grand Harbor

Notice of Park Hours

Make Sure The Park Is Open During Your Stay!


Grand Harbor Waterpark is open daily during spring break, summer & select holiday periods.


The Park is closed Mondays, Tuesdays & Wednesdays during select seasons.


Please view the Grand Harbor Waterpark Park Hours for complete details.

Photo Gallery

Excellent Amenities and an Indoor Waterpark – All in the Heart of Dubuque, IA

Browse our photo gallery for a sense of the comfort and convenience that defines the Grand Harbor Resort & Waterpark in the Port of Dubuque, IA. View photos of our well-appointed rooms and suites, fantastic meeting and conference amenities, and exhilarating waterpark – and then make plans to visit us in person.