The Montauk Branch is a commuter rail line in New York, operated by the Long Island Rail Road (LIRR). It runs from Babylon to Montauk, covering approximately 117 miles. The line serves several towns and villages along the south shore of Long Island, providing access to beaches and recreational areas. The Montauk Branch is known for its scenic views, especially during the summer months when tourists flock to Montauk Point and East Hampton. It features several stations, including Amagansett and Sag Harbor, making it a vital transportation option for both residents and visitors in the region.