Barnhart Island Beach is located in Massena, a town in St. Lawrence County in northern New York State. The beach is approximately 1,000 feet long and has a soft, sandy shoreline. Visitors can enjoy activities such as swimming, sunbathing, picnicking, and fishing at the beach. Other amenities include a playground, picnic tables, and restrooms. Please note that there are no lifeguards on duty at this beach, and pets are not allowed.