*Less than 2 mi from Exit 63 on I-95

Enjoy boating the way it should be—secure slips, a peaceful setting, and direct access to Long Island Sound. Cedar Island Marina delivers a refined marina experience in Clinton, CT.

41°15’56″N   72°31’33″W

VHF: Channels 9 / 16

ValvTect Marine Fuel logo with a shield, blue field, and a gold propeller beneath the 'VALVTECT' wordmark and 'MARINE FUEL' banner.

AMENITIES

HOURS

Mon-Friday:  8am-5pm

Sat & Sun:  9am-4pm

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MADISON, CONNECTICUT · LONG ISLAND SOUND

Best Marina & Boatyard
for Madison, CT Boaters

Cedar Island Marina has proudly served Madison, CT boaters for decades — offering world-class slips, full boatyard services, and the best waterfront experience on Long Island Sound.

HomeBest Marina near Madison CT

MADISON, CONNECTICUT

Madison’s Premier Full-Service Marina & Boatyard

Situated just minutes from Madison’s stunning coastline, Cedar Island Marina is the CT Shoreline’s top-rated destination for Madison boaters of every kind.

Whether you’re a year-round Madison sailor, a weekend powerboater, or a seasonal slip holder, Cedar Island Marina offers the services, facilities, and waterfront experience that sets us apart from any other marina on the Connecticut Shoreline. From seasonal slip rentals and winter storage to full boat repair, Cedar Island Marina is the complete package for Madison-area boaters.

Our location on Cedar Island — just a short drive or cruise from Madison — makes us the most convenient and capable full-service facility for Madison-area boaters on the entire CT Shoreline.

F-Dock Aerial | Cedar Island Marina Madison, CT

Marina SERVICES

Full-Service Marina for Madison, CT Boaters

Cedar Island Marina provides Madison-area boaters with every marine service they need — all in one convenient, top-rated facility on Long Island Sound.

Seasonal Slips

Well-protected slips on Clinton Harbor with direct Long Island Sound access — perfectly suited for Madison sailboats, powerboats, and cruisers.

Boat Service & Repair

Full boatyard repair services for Madison-area boats — engine work, hull, electrical systems, and more from expert in-house technicians.

Winter Boat Storage

Secure winter storage for Madison CT boats. Indoor and outdoor options, shrink-wrap, winterization, and spring commissioning available.

Paint & Fiberglass Repair

Expert hull restoration, bottom painting, gelcoat, and full fiberglass repair for Madison boaters — performed by skilled craftsmen.

Yacht Brokerage

Buying or selling a boat near Madison? Our CT Shoreline yacht brokerage team delivers results with deep local market knowledge.

Ship's Store & Parts

Fully stocked marine parts department and ship’s store — everything Madison boaters need to keep their vessels running perfectly.

Marina Amenities

Fuel dock, pumpout, laundry, showers, WiFi, picnic areas, and a waterfront restaurant — the complete CT Shoreline marina experience.

Overnight Reservations

Transient slips for Madison boaters and Long Island Sound cruisers. One of the CT Shoreline’s most popular overnight stops.

FREQUENTLY ASKED QUESTIONS

Marina Questions — Madison, CT

Answers for Madison, CT boaters looking for the best marina and boatyard on the Connecticut Shoreline.

What is the best marina near Madison, CT?

Cedar Island Marina is widely regarded as the best full-service marina on the Connecticut Shoreline, conveniently located just minutes from Madison. Situated in Clinton Harbor with direct Long Island Sound access, it offers seasonal slips, transient dockage, haul-out services, boat repair, winter storage, and on-site amenities that make it the top choice for Madison-area boaters.

Does Cedar Island Marina offer winter boat storage for Madison CT boats?

Yes. Cedar Island Marina provides secure winter boat storage for Madison, CT boats, including indoor and outdoor options. Their full-service boatyard also handles winterization, shrink-wrapping, and spring commissioning.

What boat repair services are available for Madison boaters at Cedar Island Marina?

Cedar Island Marina’s boatyard offers comprehensive marine repair for Madison-area boats — including engine repair, fiberglass and paint work, bottom jobs, rigging, electrical systems, and full boat service from experienced in-house technicians.

SERVING THE ENTIRE CT SHORELINE

The Best Marina for Every CT Shoreline Boater

Cedar Island Marina serves boaters from Madison and all communities along Connecticut’s beautiful shoreline. Our central location, comprehensive services, and decades of experience make us the CT Shoreline’s go-to full-service marina and boatyard.