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!

Installations
COORDINATES
43.82995 N, -69.91537 E
Port Information
Téléphone
Berth Sizes
10-20m, 20m+
Profondeur à la marée basse moyenne
2 - 3m
Manœuvrabilité
Fair
Channel Marking
Excellent
Canal VHF
9
Port d'entrée
No
Overseas Visitor Berths
Yes
Amarrages pour catamarans
Yes
Type de quai
Floating
Style Side To
Yes
Tidal Flow
Negligible
Active Winter
Yes
Weather Forecast
Sat
9AM - 1PM
13 June 2026
- NW 4–9 knots backing W 4-9 knots.
- Increasing from 24 to 27°C
- Calm sea
- Sunny
Sat
1PM - 5PM
13 June 2026
- W 6 knots increasing to S 10 knots.
- Decreasing from 26 to 21°C
- Calm sea
- UV Index: 7 - High
- Sunny
Sat
5PM - 9PM
13 June 2026
- SW 10 knots decreasing to 2 knots. Gusts up to 16 knots.
- Decreasing from 22 to 16°C
- Calm sea
- UV Index: 0 - Low
- Sunny