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Grand Harbor Resort and Waterpark

3.5 star property
3.5-star family-friendly hotel near Diamond Jo Casino, connected to the convention center

Choose dates to view prices

Photo gallery for Grand Harbor Resort and Waterpark

Property grounds
Exterior
Lobby
Free daily continental breakfast
Property amenity

Reviews

7.8 out of 10
Good

Popular amenities

  • Bar
  • Room service
  • Pool
  • 24/7 front desk
  • Gym

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

Standard Room, 1 King Bed with Sofa bed

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

Junior Suite (No Waterpark Access )

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

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

Standard Double Room, 2 Queen Beds

8.0 out of 10
Very good
(94 reviews)
  • Sleeps 4
  • 2 Queen Beds

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CA $179 total
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About the area

Dubuque

Heart of Dubuque.With a stay at this Dubuque hotel, you'll be steps from Diamond Jo Casino and within a 10-minute walk of National Mississippi River Museum and Aquarium.

What's nearby

  • Diamond Jo Casino - 1 min walk - 0.0 km
  • Grand Harbor Resort and Waterpark - 2 min walk - 0.2 km
  • National Mississippi River Museum and Aquarium - 5 min walk - 0.4 km
  • Five Flags Center - 8 min walk - 0.7 km
  • Q Casino - 3 min drive - 3.9 km

Getting around

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

Restaurants

  • ‪McDonald's - ‬10 min walk
  • ‪Pepper Sprout - ‬9 min walk
  • ‪The Filament - ‬2 min walk
  • ‪Arby's - ‬15 min walk
  • ‪Hotel Julien Dubuque - ‬9 min walk

About this property

Grand Harbor Resort and Waterpark

3.5-star family-friendly hotel near Diamond Jo Casino, connected to the convention center
Grand Harbor Resort and Waterpark offers its guests a complimentary water park, 2 hot tubs, a lazy river, and a waterslide. Along with a restaurant, there's a snack bar/deli on site. You can enjoy a drink at the bar/lounge. Free breakfast is served daily. WiFi is free in public spaces.

A 24-hour business center and meeting rooms are available. Event space at this hotel measures 1453 square feet (135 square meters) and includes a conference center. An indoor pool, a children's pool, and a fitness center are also featured at the family-friendly Grand Harbor Resort and Waterpark. Self parking is free.

This 3.5-star Dubuque hotel is smoke free.

  • 193 guestrooms or units
  • 7 levels
  • Meeting rooms
  • 1453 sq ft of conference space
  • 135 sq m of conference space
  • Built in 2002
  • Continental breakfast (free)
  • Deli
  • Kid's club (surcharge)
  • Business center (24 hours)
  • Conference center
  • Front desk (24 hours)
  • Express check-out
  • Front-desk safe
  • Game room or arcade
  • Gift shop
  • Newspapers in lobby (free)
  • Television in lobby
  • ATM
  • Elevator
  • No smoking on site
  • Bar or lounge
  • Dining venue
Grand Harbor Resort and Waterpark offers 193 air-conditioned accommodations with safes and complimentary newspapers. 32-inch flat-screen televisions come with cable channels. Guests can make use of the in-room refrigerators, microwaves, and coffee/tea makers. Bathrooms include shower/tub combinations and hair dryers.

This Dubuque hotel provides complimentary wireless Internet access. Business-friendly amenities include desks and phones; free local calls are provided (restrictions may apply). Housekeeping is provided daily.

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Property amenities

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

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

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

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)

Room amenities

Entertainment

  • 32-inch flat-screen TV with cable channels

Bedroom

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

Bathroom

  • Hair dryer
  • Shower/bathtub combination
  • Towels provided

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

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

  • No pets allowed

Children and extra beds

  • Children are welcome.
  • 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

Guests will be asked to pay the following charges at the property:

  • Deposit: USD 50.00 per stay

We've listed all charges provided to us by the property.

Optional extras

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

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

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

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
Charges for extra guests may apply and vary according to property policy.
A credit card for incidental charges and government-issued photo identification may be required upon check-in.
Special requests are subject to availability at the time of check-in. Special requests can't be guaranteed and may incur additional charges.
    This property is managed by a professional host. The provision of housing is linked to their trade, business, or profession. This property accepts Visa, Mastercard, American Express, and Discover. Cash is not accepted. 

We should mention

  • Connecting/adjoining rooms are subject to availability and can be requested by contacting the property at the number on your booking confirmation.

Property is also known as

Grand Harbor
Grand Harbor Resort
Grand Harbor Resort & Waterpark
Grand Harbor Resort & Waterpark Dubuque
Grand Harbor Resort Waterpark Dubuque
Grand Harbor Waterpark
Grand Harbor Waterpark Dubuque
Harbor Grand Resort
Dubuque Grand Harbor
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Grand Harbor Hotel Dubuque
Grand Harbor Resort And Waterpark Dubuque, Iowa
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Grand Harbor Resort Dubuque
Grand Harbor Resort Waterpark
Grand Harbor Waterpark Dubuque
Grand Harbor Resort and Waterpark Hotel
Grand Harbor Resort and Waterpark Dubuque
Grand Harbor Resort and Waterpark Hotel Dubuque

Grand Harbor Resort and Waterpark Reviews

Reviews

7.8

Good

Rating 10 - Excellent. 407 out of 1025 reviews
Rating 8 - Good. 288 out of 1025 reviews
Rating 6 - Okay. 194 out of 1025 reviews
Rating 4 - Poor. 83 out of 1025 reviews
Rating 2 - Terrible. 53 out of 1025 reviews

7.8/10

Cleanliness

8.4/10

Staff & service

7.8/10

Amenities

7.4/10

Property conditions & facilities

7.8/10

Eco-friendliness

Reviews

10/10 Excellent

Talene

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

6/10 Okay

Sara

Liked: Staff & service
The staff was very friendly and helpful, but everything was a little worn down, a little broken. Many of the machines in the arcade didn’t work. The elevator button did not light up. Lots of chipped paint. The management needs to invest in a refurbishment.
Stayed 2 nights in Jul 2025

6/10 Okay

Melissa

Travelled with family
Liked: Staff & service, property conditions & facilities, room comfort

Decent waterpark

Ac was great Beds were comfy It didnt seem entirely clean We saw spider webs and dirty areas Carpet seemed clean but there were areas that just seemed like an obvious miss Waterpark area was nice for an average day or 2 stay Arcade not great half the games didnt work maybe total 25 games
Stayed 1 night in Jul 2025

10/10 Excellent

Rocio

Liked: Cleanliness
Stayed 2 nights in Jul 2025

10/10 Excellent

Seongil

Travelled with family
Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 1 night in Jul 2025

8/10 Good

Donna

Stayed 1 night in Jul 2025

10/10 Excellent

Michelle

Travelled with family
Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 1 night in Jul 2025

8/10 Good

Carmine

Stayed 2 nights in Jul 2025

6/10 Okay

Randi

Travelled with family
Disliked: Cleanliness, property conditions & facilities, room comfort
Stayed 1 night in Jul 2025

4/10 Poor

Liv

Stayed 2 nights in Jul 2025

6/10 Okay

Cheryl

Travelled with partner
Liked: Staff & service
Disliked: Property conditions & facilities
Our NON smoking room smells very smoky. Huge water leak in the shower. Shower faucet drips. Sink handle has a leak. Bed hard as a rock.
Stayed 1 night in Jul 2025

8/10 Good

Jill

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

6/10 Okay

Kevin

Travelled with family
Disliked: Cleanliness, property conditions & facilities

Okay...ish

Great location on the river and having the Mississippi River Museum and a nice wine bar within walking distance. Everything about the hotel and water park is getting dated and worn out. The on-site restaurant has average food at best. Regardless, the kids don't notice these things and enjoyed the trip.
Stayed 2 nights in Jul 2025

10/10 Excellent

Albert

Liked: Cleanliness, staff & service, property conditions & facilities
Lovely spot for family stay.
Stayed 1 night in Jul 2025

6/10 Okay

Ryan

Travelled with family
Liked: Cleanliness
Disliked: Staff & service
Staff wasn’t prepared for large crowds at breakfast
Stayed 1 night in Jul 2025

6/10 Okay

JoLynn

Stayed 1 night in Jul 2025

4/10 Poor

James

Travelled with partner
Disliked: Property conditions & facilities
We liked the access to the downtown and the outside was attractive. Unfortunately, the walls were paper thin and it was noisy all night. We had to address our neighbors at 3:30 am because of the loud talking, playing and tv. There were at least four kids that I saw in the room, and two "adults" who didn't have any concept of hotel etiquette. The surfaces in the room were clean, but not the look (yellowing, peeling wallpaper, and mold in the washroom; with a drippy sink and shower). We stayed here two years ago and liked it, but we both felt that it had gone significantly downhill from our previous stay. Sadly (because we like the location), we will not be back.
Stayed 1 night in Jul 2025

10/10 Excellent

Sara

Travelled with family
Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 1 night in May 2025

10/10 Excellent

margaret

Travelled with partner
Liked: Cleanliness, amenities, property conditions & facilities
Great room facing river from 6th floor Very nice helpful staff. The check-in area is not a good representation of the hotel. It needs a remodel - it’s dark. I understand the “ship” theme but it isn’t appealing.
Stayed 1 night in Jun 2025

6/10 Okay

Melinda

Stayed 1 night in Jun 2025

6/10 Okay

Carla

Stayed 2 nights in Jun 2025

4/10 Poor

Robin

Travelled with family and small children
Disliked: Cleanliness, property conditions & facilities
Housekeeping was below average. Our room had a used coffee pod, pull out bed was not made and springs were poking through the mattress. The head of housekeeping told the front desk the mattress had been switched out and it had not been switched out. The housekeeper was over heard telling staff that they would switch it out tomorrow.The Resort was full and had only 1 elevator working but guests were allowed to use service elevator. The hair dryer in the room did not work. Family members staying in a sweet had a jacuzzi tub that had an out of order sign posted. That was basically our stay, everything was out of service. I will not be returning or staying at any of their facilities in the future.
Stayed 2 nights in Jun 2025

2/10 Terrible

Jeanette, BLAIR

Stayed 1 night in May 2025

10/10 Excellent

Amber

Stayed 2 nights in Jun 2025

4/10 Poor

Gwendolyn

Travelled with family and small children
Disliked: Cleanliness, amenities, property conditions & facilities
So when we first checked in, i asked for ajoining rooms . The attendant assured me that these were ajoing rooms. We went across the street to the casino for a little while. When we came back and got to the room, the room was not ajoining and the rooms they could put us in was all the way on the other side of the hotel away from my family. Once we got in the rooms, the room was dirty it had bugs in it and dirty stuff all on the walls .They tried switching the rooms and checked three more and they were dirty as well. One room they checked actually had a bug crawling on the bed so it was next.The fourth one was a little better but not as clean as it should have been.All of the ice makers were broke. They had 2 elevators and one was broke the whole time . The other room i had. Had really nasty stuff on the walls right by the door that I didn't see when I first came in. The desk was really sticky like it had not been cleaned properly. We tried to make the best of it because it was my moms 80th birthday.They things that we did like was when we complained,the staff acomadated us with a free meal and lazer maze tickets. The next day they sent someone to make sure we had what we needed however when that staff member when in one of my family members room , he was knocking on the door really hard like he was the police and when my granddaughter open the door he pushe passed her and just rushed in the room yelling and so it really upsetted my girls which made the feel unsafe. T
Stayed 2 nights in Jun 2025