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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
Lobby
Water park
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, Grand Harbor Resort and Waterpark
    ‪1 min walk‬
  • Place, Diamond Jo Casino
    ‪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
(65 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
(112 reviews)
  • 1 bedroom
  • Sleeps 4
  • 2 Queen Beds

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 - 5 min walk - 0.5 km
  • Five Flags Center - 8 min walk - 0.7 km

Getting around

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

Restaurants

  • ‪McDonald's - ‬13 min walk
  • ‪Arby's - ‬18 min walk
  • ‪Pepper Sprout - ‬13 min walk
  • ‪Hotel Julien Dubuque - ‬12 min walk
  • ‪Odd Fellows - ‬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.

Similar properties

Lobby
Hotel Julien Dubuque
  • Pool
  • Hot tub
  • Spa
  • Parking included
4.6 out of 5, Wonderful, 1,738 reviews
The price is CA $159
CA $179 total
includes taxes & fees
Mar 1 - Mar 2
Hotel Julien Dubuque

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

Grand Harbor Resort and Waterpark Reviews

Reviews

8.0

Very good

Rating 10 - Excellent. 459 out of 1027 reviews
Rating 8 - Good. 257 out of 1027 reviews
Rating 6 - Okay. 193 out of 1027 reviews
Rating 4 - Poor. 71 out of 1027 reviews
Rating 2 - Terrible. 47 out of 1027 reviews

8.0/10

Cleanliness

8.6/10

Staff & service

7.8/10

Amenities

7.4/10

Property conditions & facilities

Reviews

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

10/10 Excellent

Shahzad

Liked: Cleanliness, staff & service, property conditions & facilities
Everything was great
Stayed 2 nights in Nov 2025

10/10 Excellent

Eddah

Stayed 1 night in Nov 2025

10/10 Excellent

Eddah

Stayed 2 nights in Nov 2025

8/10 Good

Jenilyn

Travelled with family and small children
Liked: Cleanliness, amenities, property conditions & facilities
It was nice.
Stayed 1 night in Nov 2025

2/10 Terrible

George

Disliked: Cleanliness, staff & service, property conditions & facilities
Not well maintained. Terrible breakfast.
Stayed 1 night in Nov 2025

10/10 Excellent

Jane

Travelled with family and small children
Liked: Cleanliness, amenities, property conditions & facilities
Room was spacious clean and staff was excellent with any and all questions.they wore smiles and just very curtious. Food at hotel restaurant was excellent we ate there both nights.
Stayed 2 nights in Nov 2025

10/10 Excellent

jessica

Travelled with family, Travelled with group
Liked: Cleanliness, staff & service, amenities
Our stay was great front desk service was amazing so glad we could enjoy our weekend my baby turned 9 yesterday and we had a ball
Stayed 2 nights in Nov 2025

10/10 Excellent

Shahram

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Helpful and friendly staff.
Stayed 1 night in Nov 2025

10/10 Excellent

Kristopher

Travelled with family, Travelled with family and small children
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Service was excellent, breakfast wad great and Waterpark was amazing!
Stayed 1 night in Nov 2025

10/10 Excellent

Sue

Travelled with family
Liked: Cleanliness, staff & service, amenities
Everything was spectacular
Stayed 6 nights in Nov 2025

10/10 Excellent

Stacy

Liked: Cleanliness, staff & service, property conditions & facilities
The breakfast was awsome. Haven’t had breakfast at a hotel this good in years.
Stayed 2 nights in Nov 2025

10/10 Excellent

Alena

Liked: Cleanliness, amenities, property conditions & facilities
Nice clean room great water park
Stayed 1 night in Nov 2025

4/10 Poor

Karen, Denton

Disliked: Cleanliness, staff & service, property conditions & facilities
My too
Stayed 4 nights in Nov 2025

8/10 Good

Judith

Business traveller
Liked: Cleanliness, staff & service, amenities
Clean room - great views- very reasonable- friendly staff
Stayed 1 night in Nov 2025

10/10 Excellent

Mike

Liked: Cleanliness, property conditions & facilities
Room was great and the staff was very friendly.
Stayed 2 nights in Nov 2025

10/10 Excellent

Judith

Liked: Cleanliness, staff & service, amenities
Clean quiet great view
Stayed 1 night in Nov 2025

6/10 Okay

Bobbie

Travelled with family, Travelled with family and small children
Disliked: Staff & service, amenities, property conditions & facilities
The views of the Mississippi from rooms on east side of building made the rest of the stay tolerable. Great walking paths right next to hotel and plenty of parking. We stayed 2 nights and ate breakfast at 8 am on day 1, and 9 on day 2. Recommend going EARLY!! Both mornings, the “regular” coffee was empty and only decaf remained, not great for starting the day without caffeine! Otherwise, good selection of food items as long as there was place settings to serve yourself on or utensils to eat with. Staff were almost non existent so getting access to these items once gone was not easy. We were traveling on short notice and booked hotel while traveling to location, so didn’t have opportunity to read reviews or research offerings. We had 2 connecting rooms and found out after kids swam in pool that neither bathroom had conditioner provided. Not great for girls with swim hair! Bring your own! Water park was ok, but really showing its age with the metal rusting through. Lazy river is lazy but really not a river. Kids had fun but overall, water park is in desperate need of some updates!
Stayed 2 nights in Nov 2025

8/10 Good

Joanne

Stayed 1 night in Nov 2025

6/10 Okay

Heidi

Travelled with family
Liked: Staff & service
The room was less than expected for the price. The room was small there were only two plug in’s that were accessible and the tv and lamps took up the plug ins so phone charging overnight was a challenge. There was carpet lifted and pulled back in one corner. The shower head was broken/leaking terribly. The water was hot tho. The room was small for the price. The waterpark itself was decent but small for the price again. The lazy river is extremely small and has little “current”/very slow moving. The water temp in the kids area was freezing but they could get in the hot tub here to warm up definitely a perk as most places do not allow kids in the hot tub. They do have an arcade and kids craft area which was a nice addition. The front desk staff was nice and helpful altho very chatty umungst themselves and they had a staff no call no show for the night which we shouldn’t have heard all about. Overall it wasn’t bad. I however will not book here again. Room 329
Stayed 2 nights in Nov 2025

8/10 Good

Tiffany

Liked: Staff & service
Breakfast was absolutely disgusting.
Stayed 2 nights in Nov 2025

6/10 Okay

Arlene

Liked: Cleanliness, property conditions & facilities
Room was great but Waterpark was closed so disappointed
Stayed 1 night in Nov 2025

10/10 Excellent

Deborah

Travelled with family
Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
We were pleasantly surprised by the quality and variety of food served at the continental breakfast.
Stayed 1 night in Nov 2025

10/10 Excellent

Tamara

Stayed 2 nights in Nov 2025