Anchorage

Île Dumet

4.5FranceMorbihan
Shelter
NE, E
Seabed
rock
Anchoring
Allowed

Anchorage off Ile Dumet, a 7-hectare island 3 NM off the Mesquer coast in southern Brittany.

Guide

Approach and anchoring

Approach from the NE or E side where the island gives a lee. Rock bottom, hold variable, set and dive to confirm. Sheltered from NE and E winds only, fully exposed to the west.

Practical

No services on the island. Piriac-sur-Mer 3.7 NM to the SE is the closest harbour, then Port de Lerat 4.5 NM to the SE.

Ashore

Landing possible by tender on the eastern beach when calm. The island is a classified nature reserve for nesting seabirds with restricted access between 15 April and 31 August.

History

Ile Dumet carries a ruined fort built under Vauban and modified in the 19th century, and a lighthouse rebuilt after the Second World War.

Key facts

Type
Anchorage
Coordinates
47.40931, -2.62624 (47°24.56'N 2°37.57'W)
Country
France
Shelter
Sheltered from north-east, east winds
Seabed
rock
Anchoring
Allowed
Boaters' rating
4.5/5
Updated
July 7, 2026

Getting there

Île Dumet lies at 47°24.56'N 2°37.57'W, that is 47.40931, -2.62624 in decimal degrees.

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Frequently asked questions

Which winds is Île Dumet sheltered from?

Île Dumet is sheltered from north-east, east winds.

Can you anchor at Île Dumet?

Yes, anchoring is allowed at Île Dumet.

How do boaters rate Île Dumet?

Île Dumet is rated 4.5/5 by boaters on BoatMap.

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