Bonnie Castle Resort & Marina offers a scenic retreat near Heart Island and Boldt Castle. Enjoy the seasonal pool, unwind with a drink at the bar or dine at the restaurant. With in-room WiFi, vending machines, meeting rooms and helpful staff you'll feel right at home.
Watertown, NY (ART-Watertown Intl.) - 40 min drive
Gananoque Station - 33 min drive
Restaurants
Bonnie Castle Resort & Marina - 1 min walk
Coleman's Dock Of The Bay - 12 min walk
JK's Roadhouse - 6 min drive
Jreck Subs - 11 min walk
Dark Island Spirits - Distillery & Lounge - 10 min walk
About this property
Bonnie Castle Resort & Marina
Enjoy your visit to Alexandria Bay with a stay at Bonnie Castle Resort & Marina. The restaurant is the perfect spot for a bite to eat, and after having fun at the seasonal outdoor pool, you can unwind with a drink at the bar/lounge. Fellow travelers say great things about the helpful staff.
At a glance
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Hotel size
128 rooms
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Arriving/Leaving
Check-in start time: 3:00 PM; Check-in end time: 10:00 PM
Late check-in subject to availability
Minimum check-in age: 18
Check-out time is 11:00 AM
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Special check-in instructions
The front desk is open daily from 6:30 AM - 10:30 PM
Front desk staffed during limited hours
If you are planning to arrive after 10:00 PM please contact the property in advance using the information on the booking confirmation
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Required at check-in
Credit card, debit card, or cash deposit required for incidental charges
Government-issued photo ID may be required
Minimum check-in age is 18
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Children
No cribs (infant beds)
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Pets
Pets not allowed
Service animals welcome
WIFI
Internet
Free WiFi in public areas
Free WiFi in rooms
LOCAL_PARKING
Parking
Free onsite self parking
Onsite parking includes off-street options
DONE
Other information
Designated smoking areas
Property amenities
Food and drink
Restaurant
Bar/lounge
Working away
Business center
Meeting rooms
Services
Front desk (limited hours)
Facilities
ATM/banking
Seasonal outdoor pool
Banquet hall
Accessibility
Wheelchair-accessible concierge desk
Wheelchair-accessible registration desk
Upper floors accessible by stairs only
Well-lit path to entrance
Stair-free path to entrance
Room amenities
Be entertained
Flat-screen television
Cable TV channels
Home comfort
Air conditioning
Coffee/tea maker
Sleep well
Bed sheets provided
What to enjoy
Balcony or patio
Freshen up
Free toiletries
Towels
Toothbrush and toothpaste (on request)
Stay connected
Desk
Free WiFi
Food and drink
Refrigerator
More
Housekeeping (on request)
Connecting/adjoining rooms available
Special features
Dining
Riverside Sports Bar - Onsite restaurant. Guests can enjoy alfresco dining (weather permitting).
Fees & policies
Refundable deposits
Deposit: USD 100.00 per stay
Renovations and closures
The following facilities will be closed during the winter:
Bar/Lounge
Dining venue(s)
Swimming pool
Children & extra beds
Rollaway beds are available for USD 25.0 per night
Pool, spa, & gym (if applicable)
The seasonal pool is open from May to September
Policies
This property has outdoor spaces, such as balconies, patios, terraces which may not be suitable for children. If you have concerns, we recommend contacting the property prior to your arrival to confirm they can accommodate you in a suitable room.
The property has connecting/adjoining rooms, which are subject to availability and can be requested by contacting the property using the number on the booking confirmation.
This property does not have elevators.
This property accepts credit cards and debit cards. Cash is not accepted.
Credit cards accepted: Visa, Mastercard, American Express, Discover
Also known as
Bonnie Castle
Bonnie Castle Alexandria Bay
Bonnie Castle Resort
Bonnie Castle Resort Alexandria Bay
Bonnie Castle Hotel Alexandria Bay
Bonnie & Marina Alexandria Bay
Bonnie Castle Resort & Marina Hotel
Bonnie Castle Resort & Marina Alexandria Bay
Bonnie Castle Resort & Marina Hotel Alexandria Bay
Frequently asked questions
Does Bonnie Castle Resort & Marina offer free cancellation for a full refund?
Yes, Bonnie Castle Resort & Marina does have fully refundable room rates available to book on our site. If you’ve booked a fully refundable room rate, this can be cancelled up to a few days before check-in depending on the property's cancellation policy. Just make sure to check this property's cancellation policy for the exact terms and conditions.
Is there a pool at Bonnie Castle Resort & Marina?
Yes, there's a seasonal outdoor pool.
Are pets allowed at Bonnie Castle Resort & Marina?
Sorry, pets aren't allowed, but service animals are welcome.
Is parking offered on site at Bonnie Castle Resort & Marina?
Yes, there's free self parking.
What are the check-in and check-out times at Bonnie Castle Resort & Marina?
Check-in start time: 3:00 PM; Check-in end time: 10:00 PM. Check-out time is 11:00 AM.
What is there to do at Bonnie Castle Resort & Marina and nearby?
Bonnie Castle Resort & Marina has a seasonal outdoor pool.
Are there restaurants at or near Bonnie Castle Resort & Marina?
Yes, Riverside Sports Bar offers alfresco dining.
Does Bonnie Castle Resort & Marina have any outdoor private spaces?
Yes, every room features a balcony or patio.
What's the area around Bonnie Castle Resort & Marina like?
Bonnie Castle Resort & Marina is a short 5-minute walk from Saint Lawrence River and 14 minutes' walk from Scenic View Park.
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Bonnie Castle Resort & Marina Reviews
Reviews
7.0
Good
All reviews shown are from real guest experiences. Only travelers who have booked a stay with us can submit a review. We verify reviews according to our guidelines and publish all reviews, positive or negative.More informationOpens in a new window
7.2/10
Cleanliness
7.8/10
Staff & service
6.4/10
Amenities
6.2/10
Property conditions & facilities
6.6/10
Eco-friendliness
Popular mentions
Room
Service staff
View
Bed
Restaurant
Location
River
Bathroom
Water
Breakfast
Reviews
8/10 Very good
Aug 21, 2025
Great location but the hotel is dated
Pamela
Pamela, 2-night trip
8/10 Very good
Jun 8, 2025
This was our second time staying here the staff go above and are always friendly location is convenient for walking
michelle
michelle, 2-night trip
8/10 Very good
Jul 8, 2025
The resort is a little dated but I really liked it. The grounds are fantastic and the out door pool was nice for families.
Kirk
Kirk, 2-night trip
8/10 Very good
Jul 14, 2025
Bonnie Castle
The staff and location were wonderful. We were scared when we walked into the Manor Restaurant because literally no one was there on a Saturday night - we had a wonderful dinner overlooking Boldt Castle. The prime rib was excellent! The hotel and property have not had an update since probably the 1970’s but it was clean.
Traci
Traci, 2-night trip
10/10 Exceptional
Jun 3, 2025
The staff was extremely friendly and helpful. While the place is kind of outdated, it is nostalgic in that sense. The location was great, the place was clean, the price was reasonable.
Jay
Jay, 1-night trip
10/10 Exceptional
Jun 24, 2025
Well maintained motel by a lake.
Well maintained motel in attractive location opposite Boldt Castle in Lake Ontario. Nice big outdoor pool. Can walk to the restaurants of Alexandria Bay. Be aware that they sometimes have motorcycle groups staying there ( noisy engines). Easy access to Canada via nearby 24/7 border crossing.
Michael
Michael, 2-night trip
6/10 Good
Jul 11, 2025
A bay
Clean for most part—
The place is old and tired
Even to holes through roof
Stairs and railings questionable
Expensive
Did not have a breakfast offering
Rex
Rex, 2-night trip
8/10 Very good
May 25, 2025
Good
Carlos Rodriguez
Carlos Rodriguez, 1-night trip
8/10 Very good
Jan 25, 2025
Nice place to visit. Close to the boat ride and shopping.
CATHLEEN
CATHLEEN, 3-night trip
6/10 Good
Aug 3, 2025
Room 223 shower water pressure was terrible. Need to replace the shower head. Counter top in the path room needs to be repaired.
House Keeping was excellent!!
Gene
Gene, 2-night trip
8/10 Very good
Oct 13, 2024
Enjoyed staying here, very peaceful.
alicia
alicia, 3-night trip
10/10 Exceptional
May 20, 2025
Very Nice Stay
Our stay was nice and quiet and comfortable. Staff person was very pleasant and helpful. She offered if we needed anything more to let her know. If we are up that way again or someone asks, we will recommend Bonnie Castle resort to stay at.
Rose
Rose, 1-night trip
6/10 Good
Jun 20, 2025
Hotel was pretty clean. Needed repairs in multiple areas. Pretty outdated.
Alison
Alison, 3-night trip
10/10 Exceptional
Apr 8, 2025
Nice and well kept.
Ray
Ray, 3-night trip
6/10 Good
Jun 25, 2025
Stay was average
It was ok. The staff were good but the room was average/below. The bed was awful. The place was old and needs a bunch of updates.
Bridget
Bridget, 1-night trip
2/10 Poor
May 31, 2025
hotel is old,there is bugs in the room,
jinchang
jinchang, 1-night trip
10/10 Exceptional
Apr 7, 2025
Could use some more updates ,but it’s Very cozy we loved the pool area, please update date it.
Kendall
Kendall, 1-night trip
10/10 Exceptional
Feb 18, 2025
Good staff and helpful
Phillip
Phillip, 1-night trip
8/10 Very good
Nov 22, 2024
Its on the river, staff is great !
Linda
Linda, 3-night trip
6/10 Good
May 27, 2025
The website show something very different like is, first night was very noisy second one was okay,
Dalinda
Dalinda, 2-night trip
10/10 Exceptional
Dec 5, 2024
We enjoyed our stay at this property. The rooms were big and clean. The property is also at a very beautiful location overlooking the Boldt Castle and the Bay.
FNU
FNU, 2-night trip
10/10 Exceptional
Nov 12, 2024
Our room was gorgeous, so clean and comfortable. We loved the in-room jacuzzi, laminated list of TV channels, and the courtyard outside of our room which was right on the water with a great view of Bolt Castle. We can't wait to stay again!