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.

Specials & Packages

Incredible Value for Your Dubuque Visit

Treat yourself to great savings with one of our exclusive packages. Whether you’re planning a successful business meeting or a fun family vacation, Grand Harbor Resort & Waterpark is sure to have a deal that’s perfect for you.

We update our specials and packages regularly, so be sure to check our site often. You can also stay informed by signing up for our mailing list.

* Starting rates do not include taxes and service fees and are based on two adults/two children. Subject to availability. If package code does not appear, call 866-690-4006 for best available rate.


Since a leap year only happens once in a while; we figured you could use a special that only happens once in a while. Stay with us on February 28, 2016, and you can add February 29, 2016 for only $29 plus tax/service fee. Call 1-866-690-4006 to reserve your LEAP YEAR reservation.

*Must mention our LEAP promotion while making your reservations.



Book by March 10th to get this special offer.  Room, Waterpark, breakfast buffet for four & a family meal deal from Tony Roma’s  $150 plus tax/service fee. Select Dates available. Sunday – Thursday only.

Attention all students, staff & parents: School will be letting out due to a severe case of Spring Fever! Check in to the Grand Harbor Resort & Waterpark for an extra recess! With Spring Break 2016 being right around the corner, Grand Harbor is gearing up to make sure you get the rest & relaxation you need to fight the fever!

Our daily entertainment includes JoJo the Clown and our famous Splash Bash in the waterpark featuring interactive poolside games like hula hoop contests, limbo and more!

Spring Break at the Grand Harbor will run from March 11, 2016 through April 3, 2016! Keep an eye out for more detailed information, but don't hesitate to make your reservations early so you don't miss out on the fun! Check out our waterpark yearly calendar HERE.


Score a goal with this incredible family package! Our Dubuque Fighting Saints Hockey Package includes everything you need to stay out of the penalty box! This package includes room, waterpark access for four, four tickets to the Dubuque Fighting Saints game on the night of your arrival, as well as a $25 voucher for Tony Roma's, our on-site restaurant. Hurry before the buzzer sounds! Limited packages available per night.  


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Winter Getaway Package

Escape the winter blues with our Winter Getaway Package! This great package includes room with waterpark access for four, (1) one-topping pizza, $25 food voucher and $10 bounce back coupon for a future visit...Don't miss out.  Book today, limited availability.

The Hospitality You Deserve

The Grand Harbor Hotel caters to corporate travelers with many exclusive amenities. We offer a corporate rate Sunday through Thursday.

Complimentary breakfast in Tony Roma's

Complimentary Wi-Fi Access

Complimentary Airport Shuttle

Complimentary Parking

Complimentary drink ticket

Business Center

Complimentary fitness room

If you travel to Dubuque more than 10 times per year, contact our sales staff at 563-690-3242 to inquire about our special rate and exclusive benefits!

Roll the Dice Package

Sunday through Thursday book our "Roll the Dice" to receive a deluxe room for two, breakfast in Tony Roma's, $10.00 free play at Diamond Jo and a special in-room gift! Plus one FREE bottle of White Zinfandel with a paid tasting for two at Stone Cliff Winery. Don't forget our free shuttle to the Diamond Jo!

Ask about discounts for National Mississippi River Museum and Cherry Lanes!

Some restrictions apply, not valid on previous reservations and based on availability. $10.00 in free play is one per person up to two people in a room. If you book the Roll the Dice package multiple nights you only recieve  one $10  per person coupon in free play for the entire stay.

In-Room Birthday Package

Package includes:

8" Round cake with Birthday Child's Name on it, 40 Arcade Tokens, Door Banner, $20.00 Concession Voucher in waterpark and Birthday Child's Name on Marquee! Just add $60.00 to your room rate.

Must be booked two weeks in advance. $60.00 non refundable payment