About Safe Harbor Great Island Boat Yard
Great Island Boat Yard & Marina is a welcoming, family-run operation located just 40 minutes north of Portland in a naturally protected, beautiful cove. 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 expert mechanical and electrical service techs and riggers, as well as our on-site cafe and live music events. Need to provision for coastal cruising or an ocean passage? Pre-order with Craft Kitchen & Provisions!
Facilities
Electricity
Water
Showers
Sewage
Toilets
Food
Bar
Haulout
PetrolDiesel
Wifi
Recycling
Boatbuilder
Laundry
Hurricane HoleCOORDINATES
43.82995 N, -69.91537 E
Port Information
Telephone
Berth Sizes
10-20m, 20m+
Depth at MLW
2 - 3m
Manoeuvrability
Fair
Channel Marking
Excellent
VHF Channel
9
Port of Entry
No
Overseas Visitor Berths
Yes
Catamaran Berths
Yes
Dock Type
Floating
Style Side To
Yes
Tidal Flow
Negligible
Active Winter
Yes
Weather Forecast
Thu
5AM - 9AM
19 March 2026
S 2–8 knots.
−4 to 0°C
S 0.6m at 8s period
UV Index: 0 - Low
Cloudy
Thu
9AM - 1PM
19 March 2026
- S 8 knots increasing to 12 knots. Gusts up to 17 knots.
- −1 to 1°C
- S 0.6m at 7s period
- UV Index: 3 - Moderate
- Cloudy
Thu
1PM - 5PM
19 March 2026
- S 11–13 knots. Gusts up to 18 knots.
- 1°C
- S 0.7m at 6s period
- UV Index: 2 - Low
- Partly cloudy