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Grand Harbor Resort and Waterpark

3.5 star property
Family-friendly Dubuque hotel connected to the convention center, steps from Diamond Jo Casino

Choose dates to view prices

Photo gallery for Grand Harbor Resort and Waterpark

Water park
Water park
Water park
Lobby
Exterior

Reviews

8.0 out of 10
Very good

Popular amenities

  • Pool
  • Hot tub
  • Free WiFi

Explore the area

View in a map
350 Bell St, Dubuque, IA, 52001
  • Place, Diamond Jo Casino
    ‪1 min walk‬
  • Place, Grand Harbor Resort and Waterpark
    ‪2 min walk‬
  • Place, National Mississippi River Museum and Aquarium
    ‪5 min walk‬
  • Airport, Dubuque, IA (DBQ-Dubuque Regional)
    ‪14 min drive‬

Room options

View all photos for Standard Room, 1 King Bed with Sofa bed

Standard Room, 1 King Bed with Sofa bed | In-room safe, desk, iron/ironing board, cribs/infant beds

Standard Room, 1 King Bed with Sofa bed

8.2 out of 10
Very good
(59 reviews)
  • Sleeps 4
  • 1 King Bed and 1 Double Sofa Bed

View all photos for Junior Suite (No Waterpark Access )

In-room safe, desk, iron/ironing board, cribs/infant beds

Junior Suite (No Waterpark Access )

  • 1 bedroom
  • Sleeps 6
  • 2 Double Beds and 1 Double Sofa Bed

View all photos for Junior Suite, 1 King Bed with Sofa bed (No Waterpark Access )

In-room safe, desk, iron/ironing board, cribs/infant beds

Junior Suite, 1 King Bed with Sofa bed (No Waterpark Access )

  • Sleeps 4
  • 1 King Bed and 1 Double Sofa Bed

View all photos for Standard Double Room, 2 Queen Beds

Standard Double Room, 2 Queen Beds | In-room safe, desk, iron/ironing board, cribs/infant beds

Standard Double Room, 2 Queen Beds

8.2 out of 10
Very good
(101 reviews)
  • Sleeps 4
  • 2 Queen Beds

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Exterior

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About the neighborhood

Dubuque

Grand Harbor Resort and Waterpark places you next to Diamond Jo Casino and within a 10-minute stroll of other popular attractions like National Mississippi River Museum and Aquarium. This 193-room, 3.5-star hotel has conveniences like a free water park, an indoor pool, and free in-room WiFi. It's connected to the convention center in central Dubuque, and a short drive from Mississippi River and Cherry Lanes Bowling Alley.

What's nearby

  • Diamond Jo Casino - 1 min walk - 0.1 miles
  • Grand River Center - 2 min walk - 0.1 miles
  • Grand Harbor Resort and Waterpark - 2 min walk - 0.1 miles
  • National Mississippi River Museum and Aquarium - 5 min walk - 0.3 miles
  • Five Flags Center - 8 min walk - 0.5 miles

Getting around

  • Dubuque, IA (DBQ-Dubuque Regional) - 12 min drive

Restaurants

  • ‪McDonald's - ‬13 min walk
  • ‪Arby's - ‬18 min walk
  • ‪Hotel Julien Dubuque - ‬12 min walk
  • ‪Pepper Sprout - ‬13 min walk
  • ‪Dimensional Brewing Company - ‬15 min walk

About this property

Grand Harbor Resort and Waterpark

Family-friendly Dubuque hotel connected to the convention center, steps from Diamond Jo Casino
At Grand Harbor Resort and Waterpark, guests enjoy a free water park, an indoor pool, and a lazy river. You can put free parking to good use if you drive. The 24-hour front desk has staff standing by to help secure valuables, and answer any questions about the accommodations. Other amenities at this family-friendly hotel include a children's pool, a gym, and 2 hot tubs.
Guests can expect free WiFi and 32-inch flat-screen TVs with cable channels. Refrigerators, microwaves, and coffee makers are other standard amenities.
2 hot tubs are on site along with an indoor pool. In addition to a children's pool, other recreational amenities include a complimentary water park, a lazy river, and a fitness center.

The recreational activities listed below are available either on site or nearby; fees may apply.

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  • Hot tub
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Property amenities

Internet

  • Available in all rooms: Free WiFi
  • Available in some public areas: Free WiFi

Parking and transportation

  • Free self parking on site

Food and drink

  • Free continental breakfast available 6:30 AM to 9:00 AM on weekdays and 6:30 AM to 10:00 AM on weekends
  • A bar/lounge
  • A restaurant
  • Snack bar/deli

Restaurants on site

  • Tony Romas

Things to do

  • 2 hot tubs
  • Arcade/game room
  • Children's club
  • Children's pool
  • Free water park
  • Gym
  • Indoor pool
  • Lazy river
  • TV in common areas
  • Waterslide

Family friendly

  • Arcade/game room
  • Children's club (surcharge)
  • Children's games
  • Children's pool
  • Children's toys
  • Crib (surcharge)
  • Free water park access
  • In-room microwave
  • In-room refrigerator
  • Indoor pool
  • Lazy river
  • Lifeguards on site
  • Rollaway/extra bed (surcharge)
  • Snack bar/deli
  • Waterslide

Conveniences

  • 24-hour front desk
  • ATM
  • Free newspapers in lobby
  • Gift shop/newsstand
  • Safe at front desk
  • Vending machine

Guest services

  • Housekeeping (daily)

Business services

  • 24-hour business center
  • Conference center (1,453 square feet of space)
  • Meeting rooms

Outdoors

  • On a river

Accessibility

  • If you have requests for specific accessibility needs, please contact the property using the information on the reservation confirmation received after booking.
  • Assistive listening devices
  • Elevator
  • Wheelchair accessible (may have limitations)

More

  • 7 floors
  • Built in 2002
  • Lifeguards
  • Smoking not allowed

Room amenities

Bedroom

  • Bedsheets provided
  • Crib (surcharge)
  • Rollaway/extra bed (surcharge)

Bathroom

  • Hair dryer
  • Shower/bathtub combination
  • Towels provided

Entertainment

  • 32-inch flat-screen TV with cable channels

Food and drink

  • Coffee/tea maker
  • Limited room service
  • Microwave
  • Refrigerator

More

  • Air conditioning
  • Connecting rooms available
  • Desk
  • Free daily newspapers
  • Free local calls
  • Iron/ironing board
  • Phone
  • Safe

Policies

Check-in

Check-in start time: 4:00 PM; Check-in end time: midnight
Minimum check-in age: 21

Check-out

Check-out before 11:00 AM
Express check-out available

Special check-in instructions

Front desk staff will greet guests on arrival at the property
For any questions, please contact the property using the information on the booking confirmation
Information provided by the property may be translated using automated translation tools

Renovations and closures

The following facilities are closed on Monday, Tuesday, and Wednesday:
  • Children's pool
  • Indoor pool
  • Hot tub

Access methods

Staffed front desk

Pets

  • This property doesn't allow pets

Children and extra beds

  • Rollaway/extra beds are available for USD 10.0 per day
  • Cribs/infant beds are available for USD 5.0 per day

Property payment types

Important information

Fees

You'll be asked to pay these charges at the property:

  • Deposit: USD 50.00 per stay

These are all of the charges provided to us by the property.

Optional extras

These fees and deposits will be charged at check-in, check-out, or the time of service.

  • Crib (infant bed) fee: USD 5.0 per day
  • Rollaway bed fee: USD 10.0 per day

This list may not be comprehensive. Fees and deposits might not include tax and are subject to change.

You need to know

Extra-person charges may apply and vary depending on property policy
Government-issued photo identification and a credit card may be required at check-in for incidental charges
Special requests are subject to availability upon check-in and may incur additional charges; special requests cannot be guaranteed
This property accepts credit cards; cash is not accepted
  • Check-in: 4:00 PM
  • Check-out: 11:00 AM
  • Minimum check-in age: 21
The front desk is open 24 hours a day, and checking out is easy with express services. Driving? This property offers free parking.

We should mention

Details about charges, deposits, or other important information:

  • This property is managed by a professional host. The provision of housing is linked to their trade, business, or profession.
  • Charges for extra guests may apply and vary depending on the property's policy.
  • A credit card for incidental charges and a government-issued photo ID may be required at check-in.
  • Special requests are subject to availability at the time of check-in and can't be guaranteed. Certain requests may come with additional charges.
  • This property accepts credit cards. Cash is not accepted. 

Additional information about polices, regulations, and more:

  • Connecting or adjoining rooms can be requested, but all rooms are subject to availability. Contact the property using the phone number on your booking confirmation.

Property is also known as

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Frequently asked questions

What's there to do within easy reach of Grand Harbor Resort and Waterpark?

Guests positively rate the hotel's location in Dubuque, just steps from Diamond Jo Casino and Grand Harbor Resort and Waterpark, and within a short walk of Mississippi River. You'll also find Grand River Center and National Mississippi River Museum and Aquarium less than a mile away.

How much does it cost to stay at Grand Harbor Resort and Waterpark?

As of Jan 9, 2026, prices found for a 1-night stay for 2 adults at Grand Harbor Resort and Waterpark on Feb 8, 2026 start from $91.49, excluding taxes and fees. This price is based on the lowest nightly price found in the last 24 hours for stays in the next 30 days. Prices are subject to change. Choose your dates for more accurate prices.

Is parking available on site at Grand Harbor Resort and Waterpark?

Yes, self parking is offered for free at the hotel.

Does Grand Harbor Resort and Waterpark include a casino at the property?

No, Grand Harbor Resort and Waterpark doesn't have a casino.

Will I find an indoor pool at Grand Harbor Resort and Waterpark?

Yes, this hotel has an indoor pool along with 2 hot tubs.

What amenities will couples enjoy at Grand Harbor Resort and Waterpark?

This riverfront hotel offers many amenities for couples such as an indoor pool and a bar with some guestrooms featuring fireplaces.

Does Grand Harbor Resort and Waterpark have a hot tub?

Yes, this hotel has 2 spa tubs.

Does Grand Harbor Resort and Waterpark feature a restaurant that includes a breakfast menu?

Yes, Grand Harbor Resort and Waterpark serves free continental breakfast at Tony Romas on weekday mornings.

Will Grand Harbor Resort and Waterpark allow pets to stay free of charge?

No, pets aren't allowed at Grand Harbor Resort and Waterpark.

Are there connecting rooms at Grand Harbor Resort and Waterpark?

Yes, you can book connecting guestrooms at this hotel for your group or family vacation.

What is the closest airport to Grand Harbor Resort and Waterpark?

The closest major airport to Grand Harbor Resort and Waterpark is Dubuque, IA (DBQ-Dubuque Regional), which is 8.7 mi away (12 minutes by car).

Can I book a room with a balcony at Grand Harbor Resort and Waterpark?

No, there aren't any guestrooms with balconies at Grand Harbor Resort and Waterpark.

Grand Harbor Resort and Waterpark Reviews

Reviews

8.0

Very Good

Rating 10 - Excellent. 455 out of 1025 reviews
Rating 8 - Good. 264 out of 1025 reviews
Rating 6 - Okay. 190 out of 1025 reviews
Rating 4 - Poor. 71 out of 1025 reviews
Rating 2 - Terrible. 45 out of 1025 reviews

8.0/10

Cleanliness

8.6/10

Staff & service

7.8/10

Amenities

7.6/10

Property conditions & facilities

7.8/10

Eco-friendliness

Reviews

10/10 Excellent

David

Liked: Cleanliness, amenities, property conditions & facilities
Clean room and friendly staff
Stayed 1 night in Jan 2026

10/10 Excellent

Nicole

Traveled with family and small children, Traveled with family
Liked: Cleanliness, property conditions & facilities
Check in was very easy and the staff was very helpful
Stayed 1 night in Jan 2026

10/10 Excellent

Nancy

Liked: Cleanliness, staff & service, property conditions & facilities
Stayed 1 night in Oct 2025

6/10 Okay

Galin

Stayed 1 night in Jul 2025

10/10 Excellent

Sharon

Traveled with partner
Liked: Amenities
No
Stayed 2 nights in Oct 2025

8/10 Good

Belinda

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
We stay here so we can walk to the casino. The staff is super friendly.
Stayed 1 night in Sep 2025

10/10 Excellent

james

Stayed 1 night in Oct 2025

8/10 Good

Julie

Stayed 1 night in Oct 2025

10/10 Excellent

Dave

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Safe area with plenty of parking. Various food options within 3 min drive or 10 min walk.
Stayed 1 night in Oct 2025

8/10 Good

Kelsie

Traveled with family
Rooms could be a little more cleaner but other than that, everything was just fine.
Stayed 1 night in Oct 2025

10/10 Excellent

Stacey

Stayed 1 night in Sep 2025

10/10 Excellent

Joyce

Traveled with family
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
This property was in a great location. We visited the River Museum and Aquarium, which is right next door. Justin, at check in, was very friendly and helpful. He gave us some great recommendations for places to eat and have a beverage. We greatly enjoyed 7 Hilla Brewing Company and the famous hamburger at Paul's Tavern. We also enjoyed the hearty breakfast at Tony Roma's with the incredible view of the river.
Stayed 1 night in Sep 2025

6/10 Okay

Doug

Liked: Staff & service
Stayed 1 night in Oct 2025

8/10 Good

Richard

Stayed 1 night in Oct 2025

10/10 Excellent

Tarra

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 1 night in Oct 2025

10/10 Excellent

Traci

Traveled with group, Traveled with family
Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 1 night in Oct 2025

10/10 Excellent

Jane

Liked: Cleanliness, staff & service
-
Stayed 1 night in Oct 2025

6/10 Okay

Leanne

Traveled with partner
Liked: Cleanliness
They had hidden fees and the price was way too high . We didn’t get a pass to the water park . So it could’ve been way cheaper. We never go there again.
Stayed 1 night in Oct 2025

10/10 Excellent

Kayleigh

Traveled with family and small children
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
We had a great time swimming!
Stayed 1 night in Oct 2025

8/10 Good

Misty

Traveled with group
Liked: Cleanliness, staff & service, room comfort

Good stay but could be better.

Staff were great. Our room was clean. Bathtub did not drain well. No complimentary shampoo. Continental Breakfast was ok. OJ was watered down. Toasted didn’t work well. Hotel needs some updating.
Stayed 1 night in Oct 2025

10/10 Excellent

Vincent

Stayed 2 nights in Oct 2025

10/10 Excellent

Michael

Stayed 1 night in Oct 2025

10/10 Excellent

Clifford

Traveled with family and small children
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The staff was great!
Stayed 1 night in Aug 2025

6/10 Okay

Mary

Traveled with partner
Liked: Cleanliness
Poor lighting and coffee maker didn't brew well.
Stayed 1 night in Oct 2025

10/10 Excellent

Kenneth

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 1 night in Oct 2025

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