Mary Island State Park is located in the St. Lawrence River in the State of New York.

Location

It is situated in the Town of Town of Alexandria in Jefferson County, New York. One of many state parks in the Thousand Islands region, the park is accessible only by boat (On the east end of Wellesley Island).

Features; opening

The park offers picnic tables, fishing, a boat launch and docks, a campground for tents only.

Open mid-May to Labor Day.

See also

External links

Coordinates: 44°22′01″N 75°55′12″W / 44.367°N 75.92°W / 44.367; -75.92