Surfside 3 is a full service marina and dealer of Sea Ray and Sailfish boats. Surfside 3's experienced staff employs certified marine mechanics, and it has dockage with access to the North Fork's Peconic Bay at the head of James Creek in Mattituck. Surfside 3 offers haul-out and launching services, and it performs all warranty services. Surfside 3 also offers a "launch and learn" program for new boat owners.