Camping reservations can be made up to 9 months in advance. Sites become available at the 9-month window at the following times:
March 15 - Labor Day: 8AM Monday - Friday, 9AM Saturday & Sunday.
Day after Labor Day - March 14: 9AM Monday - Friday, 9AM Saturday & Sunday.
Don't Move Firewood. Protect New York's forests. Learn More.
Help Prevent the Spread of Aquatic Invasive Species. Protect New York's waters. Learn More.
MARY ISLAND STATE PARK, NY
Book a Site at MARY ISLAND STATE PARK, NY
+When you reserve one of these sites, it will not be a site specific reservation. You will be assigned a site when you arrive at the campground.
** Arrival dates earlier than the online-reservation-window may also be available at the facility.
Description
Mary Island State Park comprises 12 heavily-wooded acres with steep rocky outcroppings. Twelve waterfront campsites are scattered throughout the park, offering seclusion and spectacular views of the Canadian shore or the shipping channel. Boats may be beached or moored near campsites. The park has a picnic area and several foot trails.
Geography:
Mary Island State Park is located east of Wellesley Island.
Recreation:
Boating, fishing, camping and picnicking are the peaceful activities available at the park.
Facilities:
Campsites, picnic tables, and boat dockage are the main features of the park.
Nearby Attractions:
Nearby state parks include Canoe-Picnic Point State Park, Cedar Island State Park, Wellesley Island State Park, Dewolf Point State Park, and Keewaydin State Park.
Reservations must be made 2 Day(s) ahead of arrival and can be made up to 9 Month(s) in advance.
Friday, May 24, 2024 - Sunday, September 1, 2024
Mary Island State Park - 2025 Camping Season:
Friday, May 23, 2025 - Sunday, August 31, 2025
- Boating
- Fishing
- Hot Showers
- Marina
- Picnic Tables
- Picnicking
- Restroom
- Water Fillup Station
- Golfing
- Hospital
- Powerboating
- Shopping
44.36583, -75.92139
44°21'57"N, 75°55'17"W
Mary Island is located to the east of Wellesley Island, with only a narrow channel separating them. Access is by boat only, from either Grass Point State Park (4 miles over water), or Keewaydin State Park, which is 2 miles from the island. Patrons must have at least a 14' motorized boat to access Mary Island. Boaters are instructed to launch from Keewaydin State Park. Motor boats can be rented at Keewaydin State Park marina. 315-482-9381
Mailing Address:
MARY ISLAND STATE PARK36661 CEDAR PT.STATE PK.DRIVE
CLAYTON NY 13624