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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
Water park

Reviews

8.0 out of 10
Very good

Popular amenities

  • Bar
  • Room service
  • 24/7 front desk
  • Pool
  • 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
(56 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

Standard Double Room, 2 Queen Beds

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

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CA $174 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 - 0.1 km
  • Grand River Center - 2 min walk - 0.2 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

Getting around

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

Restaurants

  • ‪McDonald's - ‬10 min walk
  • ‪Pepper Sprout - ‬9 min walk
  • ‪Grand Harbor Resort and Waterpark - ‬2 min walk
  • ‪The Filament - ‬2 min walk
  • ‪Odd Fellows - ‬12 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
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
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

Reviews

Grand Harbor Resort and Waterpark Reviews

8.0

Very good

8.0/10

Cleanliness

8.4/10

Staff & service

7.8/10

Amenities

7.4/10

Property conditions & facilities

7.8/10

Eco-friendliness
Rating 10 - Excellent. 456 out of 1055 reviews
Rating 8 - Good. 279 out of 1055 reviews
Rating 6 - Okay. 193 out of 1055 reviews
Rating 4 - Poor. 76 out of 1055 reviews
Rating 2 - Terrible. 51 out of 1055 reviews

Reviews

10/10 Excellent

Mark

Stayed 1 night in Nov 2025

2/10 Terrible

Xue Yin

Stayed 1 night in Oct 2025

10/10 Excellent

Talene

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

10/10 Excellent

Dan

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

10/10 Excellent

Kenneth

Liked: Cleanliness, staff & service, property conditions & facilities
Was a nice stay
Stayed 1 night in Aug 2025

2/10 Terrible

Jason

Liked: Staff & service
Stayed 1 night in Aug 2025

10/10 Excellent

Verified traveller

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 2 nights in Aug 2025

8/10 Good

Edward

Stayed 1 night in Aug 2025

6/10 Okay

Ramesh

Travelled with family
Liked: Staff & service
Information provided while booking was different than checking. Timing for the Waterpark is suddenly reduced. No arcade in booking amount. Cleanliness: windows has spider webs. Should be cleaned.
Stayed 1 night in Aug 2025

4/10 Poor

Jose, Marshalltow

Travelled with family and small children
Liked: Cleanliness, amenities, property conditions & facilities
Disliked: Staff & service
Property was great , just had a little inconvenience with noisy people next door and staff members taking over an hour to take care of the problem in the middle of the night and still lying about them fixing it
Stayed 1 night in Aug 2025

6/10 Okay

Kyle

Stayed 1 night in Aug 2025

8/10 Good

Thomas

Travelled with family
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
If you are prepared for lots of kids, this resort is wonderful! The staff went above and beyond for our comforts Even with the hotel full, our room was peaceful and quiet. The surrounding area has lots to offer for adults as well. And, you can’t beat a dinner of Tony Roma’s ribs while on the patio overlooking the Mighty Mississippi River!
Stayed 1 night in Aug 2025

4/10 Poor

Brandon

Liked: Staff & service
Disliked: Property conditions & facilities
Stayed 1 night in Aug 2025

6/10 Okay

Lori

Travelled with group
Liked: Staff & service

Waterpark

We stayed here after a concert. Brittany at the front desk was AMAZING. She was accommodating, personal, and helpful. The hotel is old and could use a major update.
Stayed 1 night in Aug 2025

10/10 Excellent

Samantha

Travelled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Super nice staff!! Did not come for waterpark, just to stay. The area around it is beautiful!!
Stayed 1 night in Aug 2025

6/10 Okay

Bobby

Travelled with partner
Liked: Staff & service, amenities, property conditions & facilities
Decent newer facility however rooms had quite a bit of damage and were beat up. Carpet had holes. Door had to be forced shut like hinges were bent. Corners and behind furniture was dusty. The view however was immaculate.
Stayed 1 night in Aug 2025

10/10 Excellent

Juan

Travelled with family
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Fantastic value
Stayed 2 nights in Aug 2025

8/10 Good

Tracy

Liked: Cleanliness, staff & service, property conditions & facilities
Nice location. Needs pool updating.
Stayed 2 nights in Aug 2025

8/10 Good

Julie

Travelled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Close to the river. I liked the walking area. I wish it was longer for my run and walk, but it's lovely and well maintained. It would be a great place to bring our grandchildren!
Stayed 1 night in Aug 2025

8/10 Good

Kaitlin

Liked: Staff & service, property conditions & facilities
Rooms were not as cleaned but not horrible, the staff was super friendly and the pool was nice! However the breakfast wasn’t the best
Stayed 1 night in Aug 2025

8/10 Good

Holly

Travelled with family and small children
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Clean room, friendly helpful staff. No grab bars in the shower. Waterpark had enough variety for little ones and older kids but not so big that you had a hard keeping track of where they are.
Stayed 2 nights in Aug 2025

8/10 Good

Craig

Liked: Cleanliness, staff & service, property conditions & facilities
Rooms are nothing special but clean. Great location on the river.
Stayed 1 night in Aug 2025

10/10 Excellent

gary

Liked: Cleanliness, staff & service, property conditions & facilities
It was close to the casino. The continental breakfast was the best I’ve had in a long time.
Stayed 1 night in Aug 2025

10/10 Excellent

Nicole

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Amazing resort and very friendly staff
Stayed 1 night in Aug 2025

8/10 Good

Sarah

Stayed 2 nights in Aug 2025