Family owned and operated since 1978, Great Peconic Bay Marina is a year-round, 13-acre full-service marina located…More on Hawk's Creek, where Great Peconic Bay and Flanders Bay meet in South Jamesport. With 175 boat slips, the facility is a popular spot for those on fishing expeditions or on a low-key family vacation. The marina provides a fully-stocked marine store, air conditioned restrooms with showers, gas and diesel fuel, pump out station, and block and cube ice. Indoor and outdoor storage is also available. Call for seasonal rates.