Make Lasting Memories With Friends & Family On Shelter Island.

We provide a stunning, protective setting for the Marina’s seasonal and transient slips and moorings. It’s no wonder that our boaters return year after year to enjoy the Marina’s first class facilities.

41°04.7 / -072°19.2

A Step Above The Rest

Coecles Harbor Marina & Boatyard is the premier full-service marina located on Shelter Island, one of the most unspoiled destinations on Long Island’s East End.

Clean Showers

Laundromat

Free Wifi

Swimming Pool

Van Service

Bike Rentals

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Discover Shelter Island

A romantic weekend, a family get away, or getting in touch with nature, Shelter Island has something to offer everyone

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CUSTOM BUILT YACHTS SINCE 1979

CH Marine

Home of the Shelter Island Runabout & Nomad. Building custom yachts since 1979.

CH Marine has been handcrafting the finest custom built yachts for the past four decades. Our custom yachts are designed and created to offer an unparalleled yachting experience. Each yacht begins its journey in our Shelter Island facility as we work with you to create a custom yacht that works with your lifestyle.

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Winter Storage

Service Request

Resources

KNOWLEDGEABLE AND EXPERIENCED

CHMB Mobile Service

Dedicated to providing the highest level of remote service.

Green Marine, the CHMB Mobile Service, offers both major and minor engine overhauls, emergency engine repairs, engine surveys, and repowers. Electronic troubleshooting and new installations are also a specialty of Green Marine. Brands serviced: Yanmar, Mercruiser, Garmin, Raymarine, Fischer Panda, Westerbeke, Marine Air, and CAT.