Great Island Boat Yard

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419 Harpswell Islands Rd.
Harpswell, ME 04079
43° 49' 48.76'', -69° 54' 54.54''
VHF Ch. 9
Quahog Bay
Great Island Boat Yard
Great Island Boat Yard
Great Island Boat Yard
Great Island Boat Yard
Great Island Boat Yard
Great Island Boat Yard
Great Island Boat Yard
Great Island Boat Yard
Great Island Boat Yard
Great Island Boat Yard
Great Island Boat Yard
Great Island Boat Yard
Great Island Boat Yard
Great Island Boat Yard
Great Island Boat Yard
Great Island Boat Yard
Great Island Boat Yard
Great Island Boat Yard
Great Island Boat Yard
Great Island Boat Yard
Great Island Boat Yard
Great Island Boat Yard
Great Island Boat Yard
Partly cloudy throughout the day.
30℉E at 1 knots
Last Updated: Dec 05, 2018

Brand: ValvTect
Gas Super$3.31
Brand: ValvTect; Octane: 89; Ethanol: 10%
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Great Island Boat Yard & Marina is located just 40 minutes north of Portland, in a naturally protected and beautiful cove. We have a happy and welcoming family-run operation. Our modern boat yard facilities include a custom post and beam building housing offices, a ship’s store, and guest amenities. While staying in our marina, you gain access to our experienced riggers, and expert mechanical and electrical service techs to keep you up and running.

Great Island Boat Yard cares for over 200 boats in the winter and keeps over 100 in the marina for the summer. We offer “shipyard” capabilities with the personal and friendly service of a small family business. Over half of our customers come to us from other New England states. A parade of boats makes the 120-mile trip between GIBY and the Cape Cod Canal every spring and fall. We paint, repair, repower, and refit dozens of sailboats and motor yachts annually. We have extensive indoor storage facilities that allow our crew to function efficiently, year-round.

Transient slips and moorings are available; for reservations, please call, email, or book via the Dockwa app. Waste pump-out equipment is provided on a no-charge basis. GIBY monitors VHF channel 09, our switch-to/working channel is 10.


Picturesque, peaceful, natural hurricane hole

60 marina slips – 50 moorings

Vessels up to 70’ LOA, 8.5’ draft

ValvTect fuel, block and cubed ice, free pump-out and water

Free WiFi, customer lounge, large, clean restrooms and tiled showers, laundry facilities, cafe

Friday Night Music Series, half a dozen nights of live entertainment at the water's edge throughout the summer season

Give us a call (207) 729-1639 or email our Marina Manager at [email protected]


Easy approach with very little current. Wind is the strongest element in the cove. For best control, do not run with the wind; work against it whenever possible.

Services & Amenities

Last Updated: Dec 05, 2018

Fuel Dock:Yes
Water Hookup:Yes
Maintenance Facility:Yes
Dinghy Dock:Yes
Boat Ramp:Yes
Captains Lounge:Yes
Medical Facility:Nearby
Car Rentals:Nearby
Closest Airport:Brunswick Executive Airport; Portland International Jetport
Pet Friendly:Yes
Fitness Center:Nearby
Ship Store:Yes
Max. Vessel LOA:70.0 Feet
Max. Slip Length:23.0 Meters
Max. Slip Width:5.0 Meters
Floating Docks:Yes
Electric Amps:30, 50
Electric Voltage:120, 240
Oil Disposal:Yes
Repair Crane:Yes
Engine Service:Yes
Propeller Service:Yes
Dry Storage:Yes
Winter Storage:Yes
Yacht Brokerage:Nearby
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misaakAug 12, 2018

No one there when we arrived at 8 PM Saturday evening and no combination to the bathroom

Marina Response:
Maria. We want to apologize for your negative experience at GIBY. We understand that you arrived at 8pm, after hours, and did not have the combo to the heads. We should have reached out to you when it was apparent that you would not be in before closing, as planned. Please know that the Dockwa chat option is always available, even after hours. Your experience is a reminder to our staff, that we, too, can reach out electronically. We enjoy a 5-Star rating and are sorry that we missed an opportunity to deliver the experience you should have had. Our staff had hoped to greet you this morning, but you were already underway. We hope there will be another opportunity for us to get it right.
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johnd0623Aug 11, 2018

Entire staff that we dealt with were friendly, welcoming and helpful. Were a big help with a repair we needed done too. Special shout out to Kristin and Graham for the hospitality and assistance!

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marinekatDec 05, 2017

My husband and I over the years have been in many boatyards and marinas on the eastern seaboard and in the Caribbean for repairs, overnight stops and even storing over the winter. It's safe to say we are a fairly decent judge of what makes a good boatyard. When we found GIBY, who have now looked after our boat for over 4 years we were blown away by the service, talent of team, the customer-service driven atmosphere and love of boats! They are outstanding at what they do and I personally think one would be hard pressed to find a better yard on the east coast. My husband jokes (maybe not a joke) that if they ever sold their yard that he would leave boating forever.

Marina Response:
Thanks for your kind words, "MarineKat".
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rhrubinAug 22, 2017

Very friendly and helpful crew. Beautiful protected cove. Clean, hot, spacious shower rooms. The whole boatyard is oederly and well run.

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kenherdAug 11, 2017

Kristin - thanks again for the "platinum" service at Great Island Boat Yard on Wednesday... We'll be back soon! I'll keep an eye out for your email as a follow up, as we discussed... Best regards, Ken

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