84 4th Street South Jamesport: Private, Peaceful, Quiet, Yes, But Fun When You Want It. Enjoy a whole year at the beach for the cost of a summer. Sweet, uncluttered cottage with lots of light, an attached oversized garage, and plenty of room in every room. Extra large rear deck at patio height extends from the north facade and opens onto a seemingly endless and fenced back yard. Nestled within the South Jamesport Beach District, which officially starts at Fourth Street and ends at the Great Peconic Bay, 84 4th is only blocks away from the water, where you'll find your favorite spot to watch a full moon rise, among other things.There's the North Fork's tiniest Post Office, and Cuddy's, voted Long Island's Best Bar, The Watershed Kitchen, beloved locally for it's tasty bites, atmosphere and immediate proximity to the beach, and Adventure Paddleboards & Kayaks, when a beach chair just isn't enough.