For reservations call: 866-690-4006

Current time--:--:--
Current Weather

Check Availability

Book Now
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.


Family Fun at Our IA Hotel Waterpark


Make a splash at Grand Harbor Resort’s onsite indoor waterpark! We offer 25,000 square feet of wet fun for the entire family – including waterslides, tube rides, rope ladders, waterspouts, water chutes, squirt guns, and powerful water cannons, as well as a lazy river, activity pools, and two giant hot tub whirlpools. Grab a snack at the River’s Edge Café, or experience the “four story splash” – 350 gallons of water, dumped every eight minutes from our four-story Huck Finn II Treehouse!

Waterpark gift cards

Stop in or call 866-690-4006 today to purcahse your hotel gift card!

Cave Arcade


Be sure to visit the “Cave”, our huge interactive game room, with all of your favorite video and arcade games, including the Wheel of Fortune, Whack-a-Mole, and Ski Ball. Collect tickets to redeem for prizes at our prize redemption center.

Arcade Hours are:

Thursday - 4pm to 9pm

Friday - 8am to 10:00pm

Saturday - 8am to 10:00pm

Sunday - 8am to 9pm

Closed - Monday, Tuesday and Wednesday

Birthdays and Groups

Birthdays at Grand Harbor Resort and Waterpark




Birthday Party Packages

$250 (Based on 12 people)

Choice of (24) Chicken tenders/FF (7.5lbs.),                                                              Add-Ons

        (2) Two-topping pizzas/FF ($2/each additional topping),                             $19.99 (12) Tenders

        Or (2.5qt) Macaroni-n-Cheese/FF                                                          $10/quart of Mac

        2 Pitchers of Soda (Coke, Diet Coke, Sprite                                             $1/Soda

        Root beer, Orange Fanta, Cherry Coke,                                                   $7/Pitcher of Soda               

        And Lemonade)                                                                                 $1/Cookie Sundae

        (12) Cookie Sundaes                                                                           $30/Birthday cake

$125 (Based on 6 people)                                                                            $50/Banquet Room

Choice of (12) Chicken tenders/FF (3.25lbs.)

        (1) Two topping pizzas/FF

        (1.25qt) Macaroni-n-Chz/FF

        6 Sodas

        6 Cookie Sundaes


Pizza Add-On

One-topping - $14                                           Three topping - $18

Two-topping - $16                                           Specialty (Meat Lovers, Supreme, Veggie, Hawaiian, BBQ Chicken) $24


Upcoming Events


Other Area Attractions

Grand Harbor Resort & Waterpark’s central location, in the Port of Dubuque, IA, places you a short distance away from many of the area’s top activities and attractions. We’ve listed some of the highlights below; if you would like additional information about these or other things to do here in Dubuque, please ask us!