Mouillage

Duck Harbour Isle au Haut

5.0United StatesMaine
Shelter
N, NE, E, S, SE
Seabed
sand, mud
Anchoring
Allowed

Anchorage on the west side of Isle au Haut, Maine, within Acadia National Park, on a sand and mud bottom with shelter from N through E and round to SE.

  • Pontoon

Guide

Approach and anchoring

The entrance is narrow and easily missed in fog, with a bold rock outcrop marking its northern side. Hold to the south side of the harbour, west of the Acadia National Park float, where holding on sand and mud is good. Room is tight, with space for only four or five boats.

Practical

There are no services here. Billings Diesel and Marine at Stonington lies 7.2 nm N with fuel, water and a boatyard. Bucks Harbor Marina is 19 nm N. The mailboat from Stonington serves the island, which has no road link to the mainland.

Ashore

The Duck Harbor Mountain Trail climbs from the head of the harbour to a summit with a view over the outer islands. A small National Park Service campground of five lean-to sites sits ashore. The southern half of Isle au Haut has been part of Acadia National Park since 1943.

Key facts

Type
Anchorage
Coordinates
44.02920, -68.65237 (44°1.75'N 68°39.14'W)
Country
United States
Shelter
Sheltered from north, north-east, east, south, south-east winds
Seabed
sand, mud
Anchoring
Allowed
Services
Pontoon
Boaters' rating
5.0/5
Updated
July 7, 2026

Getting there

Duck Harbour Isle au Haut lies at 44°1.75'N 68°39.14'W, that is 44.02920, -68.65237 in decimal degrees.

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Frequently asked questions

Which winds is Duck Harbour Isle au Haut sheltered from?

Duck Harbour Isle au Haut is sheltered from north, north-east, east, south, south-east winds.

Can you anchor at Duck Harbour Isle au Haut?

Yes, anchoring is allowed at Duck Harbour Isle au Haut.

How do boaters rate Duck Harbour Isle au Haut?

Duck Harbour Isle au Haut is rated 5.0/5 by boaters on BoatMap.

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