Title: Mary Island State Park in Wellesley Island - Tours and Activities | Expedia.ca [Mary Island State Park Hotels](https://expedia.ca/Mary-Island-State-Park-Hotels.0-l6093795-0.Travel-Guide-Filter-Hotels)[Flights to Wellesley Island](https://expedia.ca/Cheap-Flights-To-Wellesley-Island.d6190524.Travel-Guide-Flights)[Things to do in Wellesley Island](https://expedia.ca/Things-To-Do-In-Wellesley-Island.d6190524.Travel-Guide-Activities)[Mary Island State Park Car Rentals](https://expedia.ca/Car-Rentals-In-Mary-Island-State-Park.d6093795.Car-Rental-Guide)[Wellesley Island Vacation Packages](https://expedia.ca/Wellesley-Island.d6190524.Destination-Travel-Guides) # Mary Island State Park Tours and Activities ## Visit Mary Island State Park Activities --- --- ### Popular places to visit ![Boldt Castle](https://mediaim.expedia.com/destination/2/614396e6ff0fe2e6039bfc9de8cc021e.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh) #### Boldt Castle After visiting Boldt Castle, make a plan to see the other sights and activities in Alexandria Bay. Amble around the area's riverfront or seek out the local tours. [](https://expedia.ca/Boldt-Castle-Alexandria-Bay.d6093793.Vacation-Attraction) ![St. Lawrence Islands National Park which includes a river or creek and forest scenes](https://a.travel-assets.com/findyours-php/viewfinder/images/res70/82000/82701-St-Lawrence-Islands-National-Park.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh) #### St. Lawrence Islands National Park Explore the islands, islets and peninsulas that dot the St. Lawrence River between Kingston and Brockville. [](https://expedia.ca/St-Lawrence-Islands-National-Park-Leeds-and-the-Thousand-Islands.d6089311.Vacation-Attraction) ![Keewaydin State Park](https://mediaim.expedia.com/destination/2/c3e291b50e399f02be9434992789d6b6.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh) #### Keewaydin State Park You can take time to visit Keewaydin State Park during your travels to Alexandria Bay. Stroll along the riverfront or visit the shops in the area. [](https://expedia.ca/Keewaydin-State-Park-Alexandria-Bay.d637211869209980928.Vacation-Attraction) #### Boldt Yacht House Learn about the local history of Wellesley Island with a stop at Boldt Yacht House. Amble around the area's riverfront or seek out the local tours. [](https://expedia.ca/Boldt-Yacht-House-Wellesley-Island.d553248621532665388.Vacation-Attraction) #### Cornwall Brothers Museum You can study the exhibits at Cornwall Brothers Museum, a museum with a storied past, during your travels to Alexandria Bay. Stroll along the riverfront or seek out the local tours. [](https://expedia.ca/Cornwall-Brothers-Museum-Alexandria-Bay.d553248621532665382.Vacation-Attraction) #### River Hospital Though River Hospital might be what brings you to town, perhaps you'll have a chance to explore more of Alexandria Bay while you are here. [](https://expedia.ca/River-Hospital-Alexandria-Bay.d553248635997986669.Vacation-Attraction) --- ## Best Lodging Options Near Mary Island State Park ## Check availability on hotels close to Mary Island State Park [Tonight ](https://expedia.ca/Hotel-Search?rfrrid=TG.LP.CheckPrices.Package&adults=2&openPlayBack=true®ionId=6093795&startDate=2025-12-16&endDate=2025-12-17)[Dec 16 - Dec 17](https://expedia.ca/Hotel-Search?rfrrid=TG.LP.CheckPrices.Package&adults=2&openPlayBack=true®ionId=6093795&startDate=2025-12-16&endDate=2025-12-17) [Tomorrow night ](https://expedia.ca/Hotel-Search?rfrrid=TG.LP.CheckPrices.Package&adults=2&openPlayBack=true®ionId=6093795&startDate=2025-12-17&endDate=2025-12-18)[Dec 17 - Dec 18](https://expedia.ca/Hotel-Search?rfrrid=TG.LP.CheckPrices.Package&adults=2&openPlayBack=true®ionId=6093795&startDate=2025-12-17&endDate=2025-12-18) [This weekend ](https://expedia.ca/Hotel-Search?rfrrid=TG.LP.CheckPrices.Package&adults=2&openPlayBack=true®ionId=6093795&startDate=19%2F12%2F2025&endDate=21%2F12%2F2025)[Dec 19 - Dec 21](https://expedia.ca/Hotel-Search?rfrrid=TG.LP.CheckPrices.Package&adults=2&openPlayBack=true®ionId=6093795&startDate=19%2F12%2F2025&endDate=21%2F12%2F2025) [Next weekend ](https://expedia.ca/Hotel-Search?rfrrid=TG.LP.CheckPrices.Package&adults=2&openPlayBack=true®ionId=6093795&startDate=26%2F12%2F2025&endDate=28%2F12%2F2025)[Dec 26 - Dec 28](https://expedia.ca/Hotel-Search?rfrrid=TG.LP.CheckPrices.Package&adults=2&openPlayBack=true®ionId=6093795&startDate=26%2F12%2F2025&endDate=28%2F12%2F2025) ![Riveredge Resort](https://images.trvl-media.com/lodging/16000000/15770000/15768700/15768687/5ec99cdc_y.jpg?impolicy=resizecrop&rw=340&ch=150) ### Riveredge Resort 17 Holland Street Alexandria Bay NY [](https://expedia.ca/Alexandria-Bay-Hotels-Riveredge-Resort.h15768687.Hotel-Information) ![Otter Creek Inn](https://images.trvl-media.com/lodging/14000000/13280000/13278700/13278667/d5de0239_y.jpg?impolicy=resizecrop&rw=340&ch=150) ### Otter Creek Inn 2 Crossmon Street Extension Alexandria Bay NY [](https://expedia.ca/Alexandria-Bay-Hotels-Otter-Creek-Inn.h13278667.Hotel-Information) ![Thousand Islands Home w/ views of Boldt Castle](https://images.trvl-media.com/lodging/73000000/72320000/72317700/72317699/f7a08b0e_y.jpg?impolicy=resizecrop&rw=340&ch=150) ### Thousand Islands Home w/ views of Boldt Castle Wellesley Island NY [](https://expedia.ca/Wellesley-Island-Hotels-Thousand-Islands-Home-W-Views-Of-Boldt-Castle.h72317699.Hotel-Information) ![Bonnie Castle Resort & Marina](https://images.trvl-media.com/lodging/1000000/900000/894100/894054/987c8d32_y.jpg?impolicy=resizecrop&rw=340&ch=150) ### Bonnie Castle Resort & Marina 31 Holland Street Alexandria Bay NY [](https://expedia.ca/Alexandria-Bay-Hotels-Bonnie-Castle-Resort-Marina.h894054.Hotel-Information) ![Outdoor Adventure Home: Golfing, Hiking & Kayaking](https://images.trvl-media.com/lodging/57000000/56960000/56954800/56954746/7b9ef1c5_y.jpg?impolicy=resizecrop&rw=340&ch=150) ### Outdoor Adventure Home: Golfing, Hiking & Kayaking Wellesley Island NY [](https://expedia.ca/Wellesley-Island-Hotels-Outdoor-Adventure-Home-Golfing.h56954746.Hotel-Information) ![Thousand Island Hart House](https://images.trvl-media.com/lodging/106000000/105360000/105358000/105357903/34458c6e_y.jpg?impolicy=resizecrop&rw=340&ch=150) ### Thousand Island Hart House 21979 Club Rd Wellesley Island NY [](https://expedia.ca/Wellesley-Island-Hotels-Thousand-Island-Hart-House.h105357903.Hotel-Information) ![The Ledges Resort and Marina, Lighthouse](https://images.trvl-media.com/lodging/23000000/22410000/22406000/22405912/b383cff1_y.jpg?impolicy=resizecrop&rw=340&ch=150) ### The Ledges Resort and Marina, Lighthouse Alexandria Bay NY [](https://expedia.ca/The-Ledges-Resort-And-Marina.h22405912.Hotel-Information) ![The Ledges Resort and Marina, Loon Cottage](https://images.trvl-media.com/lodging/22000000/21130000/21126300/21126207/95e7fcb1_y.jpg?impolicy=resizecrop&rw=340&ch=150) ### The Ledges Resort and Marina, Loon Cottage Alexandria Bay NY [](https://expedia.ca/Alexandria-Bay-Hotels-The-Ledges-Resort-And-Marina.h21126207.Hotel-Information) ![Luxurious 3-bedroom custom built home in the heart of the Thousand Islands](https://images.trvl-media.com/lodging/118000000/117050000/117040500/117040443/29e3c68a_y.jpg?impolicy=resizecrop&rw=340&ch=150) ### Luxurious 3-bedroom custom built home in the heart of the Thousand Islands Alexandria Bay NY [](https://expedia.ca/Alexandria-Bay-Hotels-Luxurious-3-Bedroom-Custom-Built-Home-In-The-Heart-Of-The-Thousand-Islands.h117040443.Hotel-Information) [See all 541 properties in Mary Island State Park](https://expedia.ca/Hotel-Search?rfrrid=TG.LP.Hotels.Package®ionId=6093795) Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.