Harbor Marina


6 Boat Yard Road
East Hampton, NY 11937

Tel 631-324-1320 (On Site)
Fax 631-324-9185

Tel 631-324-5666 (Administration)
Fax 631-324-3366

A Full Service Marina and Boatyard

with Year-Round Facilities


Three Mile Harbor Marina is a full service marina and boatyard with a well stocked ship's store. The facilities are located at the "Head of the Harbor" in Three Mile Harbor. Boaters will find waterfront access to their vessels from floating docks. The facility is unique with its offering of a large indoor storage facilities with 40-Ton travelift capacity. The facilities are staffed seven days a week in season. Only three miles south of the marina are some of the world's finest ocean beaches and the retail shops, historical landmarks, museums, theaters, art galleries, restaurants, and night clubs in the villages of East Hampton and Amagansett.


  • MARINA FACILITIES: Seventy (70) slips on floating docks with finger piers, electric outlets, water, and shoreside restroom facilities. A short walk to a well stocked deli and a public shuttle to the village.
  • BOATYARD: Hauling capacity for vessels from 17 feet to 40-Tons, storage choices in a large indoor facility or outdoors in a protected area. Storage is available winter or summer, for power or sail. The Boatyard offers short hauls, launches, hull repairs, engine, plumbing, or electrical repairs, varnishing, Awl-grip and bottom painting, shrink-wrapping. Call for mooring installations and removals. Engine Dealerships with Cummins, Volvo Penta, Mercury Mercruiser, Yanmar, Onan, Westerbeke, Universal, with Certified Master Technicians for Mercury Mercruiser, Volvo Penta, and Yamaha.
  • SHIP'S STORE: A 3,000 ft2 well-stocked marine store with a large selection of marine parts and boating accessories, snacks, bait, ice, tackle, sundries, boating and local literature, and nautical gifts.
  • FULL SERVICE: A full service department with mobile repairs to all of East Hampton, Sag Harbor and Montauk.


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Seacoast Enterprises Associates, Inc.
423 Three Mile Harbor Hog Creek Road
East Hampton, NY 11937
Phone: 631-324-5666
Email: info@sea-incorp.com
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