Harbour

Merrien

3.8FranceMorbihan
Maximum length
29 ft
Maximum draught
6 ft

Small drying ria on the south coast of Finistère between Le Pouldu and Doëlan, sheltered behind the headlands of Beg Morg and Beg Porz.

Guide

Approach and anchoring

Narrow entrance oriented NNE, marked by a white daymark on the east side. Approach on the axis of the ria, keep the mark in line to clear the rocks of Men Du. Entrance feasible at any tide, but the upper basin dries from mid-tide. Around 160 moorings on fore-and-aft lines, no pontoon.

Practical

Moorings managed by the local commune. Water tap at the slipway, no fuel, no electricity. Depths dry out, and even the outer buoys can leave a keelboat on the bottom at low water springs, so most boats here carry legs, and a boat must be ready to take the ground. Oysters are sold direct on the shore. Restaurant at the quay, bakery at Moëlan-sur-Mer 4 km inland.

Ashore

Coastal path GR 34 runs along both banks of the ria, linking Merrien to Brigneau 1 NM west and Doëlan 1.7 NM southeast on foot. Sardine cannery ruins at the head of the ria. Beach of Kerfany-les-Pins 3 km by road.

Key facts

Type
Harbour
Coordinates
47.78276, -3.64683 (47°46.97'N 3°38.81'W)
Country
France
Maximum draught
6 ft
Maximum length
29 ft
Boaters' rating
3.8/5
Updated
October 15, 2026

Getting there

Merrien lies at 47°46.97'N 3°38.81'W, that is 47.78276, -3.64683 in decimal degrees.

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Frequently asked questions

What boat length does Merrien accept?

Merrien accepts boats up to 29 ft.

How do boaters rate Merrien?

Merrien is rated 3.8/5 by boaters on BoatMap.

Brigneau

Brigneau

Ménémarzin, France

3.4Harbour1.0 NM

Doëlan

Doëlan

France

4.4Anchorage1.7 NM

Doelan

Doelan

France

3.6Harbour1.7 NM

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