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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

Water park
Water park
Exterior
Lobby
Water park

Reviews

8.0 out of 10
Very good

Popular amenities

  • Pool
  • Hot tub
  • Breakfast included
  • Free WiFi

Explore the area

View in a map
350 Bell St, Dubuque, IA, 52001
  • Place, Grand Harbor Resort and Waterpark
    ‪1 min walk‬
  • Place, Diamond Jo Casino
    ‪2 min walk‬
  • Place, National Mississippi River Museum and Aquarium
    ‪8 min walk‬
  • Airport, Dubuque, IA (DBQ-Dubuque Regional)
    ‪15 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

8.0 out of 10
Very good
(73 reviews)
  • 1 bedroom
  • 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

Standard Double Room, 2 Queen Beds

8.2 out of 10
Very good
(135 reviews)
  • 1 bedroom
  • Sleeps 4
  • 2 Queen Beds

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About the area

Dubuque

Heart of Dubuque.Your stay at this Dubuque hotel places you within a 10-minute walk of Diamond Jo Casino and National Mississippi River Museum and Aquarium.

What's nearby

  • Grand Harbor Resort and Waterpark - 1 min walk - 0.0 km
  • Diamond Jo Casino - 2 min walk - 0.2 km
  • Grand River Center - 3 min walk - 0.3 km
  • National Mississippi River Museum and Aquarium - 8 min walk - 0.7 km
  • Five Flags Center - 11 min walk - 1.0 km

Getting around

  • Dubuque, IA (DBQ-Dubuque Regional) - 14 min drive

Restaurants

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

  • 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
Safety features at this property include a fire extinguisher
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. For guests' safety, the property includes a fire extinguisher in each accommodation.

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

8.0

Very good

Rating 10 - Excellent. 483 out of 1109 reviews
Rating 8 - Good. 292 out of 1109 reviews
Rating 6 - Okay. 208 out of 1109 reviews
Rating 4 - Poor. 72 out of 1109 reviews
Rating 2 - Terrible. 54 out of 1109 reviews

8.0/10

Cleanliness

8.6/10

Staff & service

7.8/10

Amenities

7.4/10

Property conditions & facilities

Reviews

2/10 Terrible

Stephanie

Stayed 1 night in Mar 2026

8/10 Good

David

Travelled with family
Liked: Cleanliness, property conditions & facilities
Everything was clean
Stayed 1 night in Jan 2026

6/10 Okay

David

Liked: Cleanliness
Room was fine. They were between liquor licenses so no alcohol available. Luckily i brought my own. Gonna be a Radisson hotel.
Stayed 1 night in Jan 2026

8/10 Good

david

Travelled with family
Liked: Cleanliness, amenities, property conditions & facilities
My kids loved this place, the arcade and water park was a lot of fun! Room was clean, con was that there was no alcohol sales during our stay due to new management and waiting for liquor license.The water park needs updated but still a lot of fun. If it wasnt for that would of given 5 stars.
Stayed 2 nights in Jan 2026

8/10 Good

James

Liked: Cleanliness, staff & service, property conditions & facilities
Good rooms
Stayed 1 night in Jan 2026

8/10 Good

Robin

Travelled with family
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Kids had a great time!
Stayed 1 night in Jan 2026

8/10 Good

Robin

Travelled with family
Liked: Cleanliness, staff & service
Kids had a great time!
Stayed 1 night in Jan 2026

4/10 Poor

Ellen

Disliked: Cleanliness, staff & service, property conditions & facilities
Stayed 1 night in Jan 2026

10/10 Excellent

Karlie

Stayed 1 night in Jan 2026

8/10 Good

Kara, Lake Villa

Travelled with family and small children
Liked: Amenities
Water park was great for the kids
Stayed 3 nights in Dec 2025

10/10 Excellent

Julie

Liked: Cleanliness, amenities, property conditions & facilities
Room was cleaned. Our room had a great view.
Stayed 1 night in Jan 2026

2/10 Terrible

Courtney

Stayed 1 night in Jan 2026

8/10 Good

MacTonya

Stayed 1 night in Jan 2026

10/10 Excellent

Tammy

Travelled with family, Travelled with family and small children
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Overall the hotel was better than the reviews. Waterpark needs some painting but kids don’t care. Beds were comfortable with rooms very clean. A full breakfast was nice with a large family. Very accommodating with kids activities in and out of the waterpark area. Front desk was very nice and helpful. They put our family all together which made the trip even more fun and convenient with small children
Stayed 1 night in Jan 2026

6/10 Okay

Lisa

Travelled with family and small children
Disliked: Staff & service, amenities
There was a line for breakfast. Tables were disgusting. Out of milk and coffee and nobody on site to request more. This is mainly a kids attraction. I expected kid friendly breakfast. Only had eggs, tots, and sausage links. Offered dry cereals. Room had an false eyelash and hair in the bathroom. Didnt seem as clean as it should be. Seemed like hotel isnt being updated and falling apart. The Arcade had a lot of the games that were out of order. Pool was small and big kids were rough housing and almost dunked my 5 yr old and slammed her into the wall in lazy river. Lifeguard did nothing.
Stayed 1 night in Jan 2026

4/10 Poor

Dana

Disliked: Cleanliness, staff & service, property conditions & facilities
Stayed 1 night in Jan 2026

10/10 Excellent

Ashley

Travelled with family, Travelled with family and small children
Liked: Cleanliness, staff & service, amenities
Rooms were clean
Stayed 1 night in Dec 2025

10/10 Excellent

Hans

Stayed 2 nights in Dec 2025

6/10 Okay

Matthew

Travelled with family, Travelled with family and small children, Travelled with partner, Travelled with group
Breakfast area was very poorly set-up and it took several minutes for a single person to get through. As the morning went on the breakfast area was absolutely trashed and it didn't seem like anyone was there cleaning the tables and there weren't supplies to clean it yourself. Front desk staff was a hit or a miss. The room locked us out before checkout time and we had to get someone to open the door for us. The bath tub had drainage issues and we had floating debris the first time we had to shower. There was no vent in the bathroom so it got super humid in the entire room. Not enough hangers. The water park was fun but not big enough and honestly it needs some major tlc. Lots of broken features and everything was rusted out.
Stayed 2 nights in Jan 2026

10/10 Excellent

Nicole

Overall experience was good. Facility could use some updating. Waterpark water was too cool. Could be a little warmer. Staff was great!
Stayed 2 nights in Jan 2026

8/10 Good

Heidi

Travelled with family
Liked: Cleanliness, staff & service
Room was great, continental breakfast was good. Disappointed that the snack shack wasn't open anytime we went down to the pool even when a note on the window said what time they would open, 30 minutes later still no one there.
Stayed 2 nights in Oct 2025

10/10 Excellent

Justin

Stayed 1 night in Jan 2026

10/10 Excellent

Kaylea

Liked: Cleanliness, amenities, property conditions & facilities
Clean rooms. Will stay again
Stayed 1 night in Dec 2025

10/10 Excellent

Ashly

Travelled with family and small children, Travelled with partner
Liked: Cleanliness, amenities, property conditions & facilities
We have stayed here a couple times and alway have a great experiences. The last time we stay the fridge was broke and had started to mold. We let them know and with in a hour we had a brand new. The staff is always helpful and so nice. Cant wait tell our next trip there
Stayed 2 nights in Jan 2026

10/10 Excellent

Gregory J

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Nice breakfast. To bad that the bar in the restaurant was closed.
Stayed 1 night in Jan 2026