New York State Park · Suffolk County
Partly on the mainland and partly on Barnhart Island, reached through a tunnel under the Eisenhower Lock. Wooded campsites and cabins, a marina and boat launch, and some of the best fishing in the Northeast.
Free entry — Vehicle Entry Fee: Car Parking & Beach Use: Free Bus Use (Daily): Commercial $75 Non Profit $35 Know Before You Go Pet Policy A maximum of two pets are allowed in campsites and day use areas unless prohibited by sign or directive. Pets are to be supervised at all times and either be crated or on a leash not more than 6-feet in length. Proof of rabies inoculation shall be produced if requested by staff. Pets are not permitted in playgrounds, buildings, golf courses, boardwalks, pools and spray-grounds or guarded beaches (this does not apply to service animals). Accessibility For additional information on accessibility at this location, please contact us at the number listed on this page.
Open year round.
2026 Camping/Cabin Season:
Long Sault: 5/15 - 10/11
Barnhart: 5/15 - 9/6
Hours as published by NY State Parks. Check the official page before a long drive.
Robert Moses State Park Nature Center: Open Memorial Day through Labor Day, daily from 9am to 5pm. Closed on Mondays and Tuesdays.
2026 Swimming Season: 6/27 - 8/29; 11 am - 7 pm
Boat Dockage (Transient) & Boat Rentals: 5/15 - 10/11
The marina operates from May 18 through October 1.
Schedules for pools, museums, campgrounds, tours and other facilities inside the park, as published by NY State Parks — not the park's own opening hours.
Phone315-769-8663
Address32 Beach Marina Road, Massena, NY 13662
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