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Gosport Harbor
Gosport Harbor sits right at the Isles of Shoals, a remote island cluster straddling the New Hampshire-Maine state line about 10 miles offshore from Portsmouth. You'll drop anchor here in 6–20 feet of water, sheltered by breakwaters connecting Star, Cedar, Smuttynose, and Malaga Islands — a wild, rocky setting that feels genuinely far from the mainland. Moorings are usually available except on busy summer weekends, so plan accordingly if you're heading out in peak season.
Based on AIS data
quiet → busy
Marinas and anchorages near Gosport Harbor · times are dock to dock
Popular Times
Boats arriving and leaving, by local hour — the hours the quay is actually working.
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- Busiest on Sundays
- Busiest around 15:00 — mostly boats arriving
- Half the boats that stop here have arrived by 14:00
- 66% of visits are overnight
- Typical stay: ~14h
Plan a Passage
Popular
21 legs boats have actually been recorded sailing.
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