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Full Service Marinas in East Hampton

Seacoast Enterprises Associates (S.E.A.) operates 4 well-equipped Marinas and 2 full service boatyards on beautiful Three Mile Harbor. Located in East Hampton, New York, S.E.A. marinas offer boating destinations to get away, relax, and enjoy the Hampton’s premier power boating, sailing, and eco-tourism harbor, with Gardiner’s Bay and the world-famous coastline of Eastern Long Island just minutes from your slip.

Location is key

Our East Hampton marinas give you access to dockage, marine repairs, sailboat rigging, Valvtec gas and diesel fuel, factory-certified technicians, travel lift capacity to 40 tons, marine chandlery, ships stores, bait, tackle, ice, nautical gifts, waterside dining and much more. Enjoy the professional service and amenities we offer to enjoy a safe, fun, and hassle free boating lifestyle. Three Mile Harbor, East Hampton, NY. is the place to be this summer.

Reserve your space for 2018 Summer Dockage, Valet Dry Rack and Summer Storage!

Call 631-324-5666 to discuss availability for your vessel.

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