Mary Island State Park Tours

Name: Outdoor Adventure Home: Golfing, Hiking & Kayaking
Address: Wellesley Island

Visit Mary Island State Park

Get away from it all and soak up the tranquil natural surroundings of Mary Island State Park. Take advantage of any walking tracks and picnic areas spread across this protected habitat.

This protected natural landscape is situated in Wellesley Island, a place that has so much on offer! Boldt Castle, St. Lawrence Islands National Park, and Thousand Islands Bridge are other popular sightseeing opportunities nearby when you've finished up at Mary Island State Park.

Plan a trip to see Mary Island State Park

Price found within the past 48 hours. Click for updated prices.

The GillHouse

$727

per person

Dec 24 - Dec 31

found 6 hours ago

Roundtrip non-stop flight included

San Antonio (SAT) to Watertown (ART)

8/10 Very Good! (1 review)

A Thursday night I called them on the way and told them that I would be coming after 8pm. And they askey me place an order for food as the kitchen will closing. I loved it, it was ready when I arrived! Fantastic And the room was great. Plus coffee was ready at 7am in the hallway. Great prices. All good 5* Thanks!

Reviewed on Oct 24, 2025

Popular places to visit

The tiny islands in the St Lawrence River are actually the tops of worn-down mountains. Do the cruise around all the quirky ways that people have added structures to them. And then you come across Boldt castle amongst all the islands! #water #boats #castles

Boldt Castle

4.5/5(248 reviews)

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.

St. Lawrence Islands National Park

4.5/5(32 reviews)

Explore the islands, islets and peninsulas that dot the St. Lawrence River between Kingston and Brockville.

This is the view from the back of my Jeep in campsite #23; right on the river and only $18 per night! Perfect place to car camp.

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.

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.

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.

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.

Best Lodging Options Near Mary Island State Park

Capt. Thomson's Resort

45 James Street, Alexandria Bay, NY

Riveredge Resort

17 Holland Street, Alexandria Bay, NY

Capt.'s Inn & Suites

116 Church Street, Alexandria Bay, NY

Bonnie Castle Resort & Marina

31 Holland Street, Alexandria Bay, NY

Otter Creek Inn

2 Crossmon Street Extension, Alexandria Bay, NY

Thousand Islands Home w/ views of Boldt Castle

Wellesley Island

Waterfront Luxury Boathouse Villa in 1000 Islands - Alexandria Bay

Alexandria Bay

Townhouse on water with boathouse!