Walk
Circuit du barrage, tour du lac Saint-Barthélémy
La Méaugon · Côtes-d’Armor
A 7.3 km loop around the Saint-Barthélémy lake, in La Méaugon: the 45 m Gouët dam, a railway viaduct and a picturesque village centre.
- Suggested time
- 2 hours
- Type of place
- Walking loop · Bay of Saint-Brieuc
- Atmosphere
- A lake circuit between woods and fields.
- Getting there
- La Méaugon. Place de l’Église
The route
Loop: the route returns to its starting point. Route: Département des Côtes-d'Armor (PDIPR), Licence Ouverte 2.0, mise à jour du 2026-09-11.
Download the GPS trackGPX file, to open in a walking app (Komoot, OsmAnd, Garmin Connect, iPhiGéNie…).
Who this place suits
- With family
- 5/10
- As a couple
- 7/10
- With friends
- 8/10
- Solo
- 8/10
- With a dog
- 8/10
- Reduced mobility
- 2/10
These scores are calculated from what the page records: official rating, facilities, difficulty, duration and location. They are a guide, not a substitute for contacting the venue, especially about accessibility.
About
The Saint-Barthélémy lake, the northern Gouët reservoir, covers 81 hectares in La Méaugon. A path, sometimes wooded, sometimes along fields, goes all the way round. On the way, impressive structures appear: the Gouët dam, 45 m high, and the viaduct of the Paris-Brest line. Older, the village of La Méaugon keeps a picturesque architecture. The lake is now popular with anglers and leisure boats. The loop is 7.3 km long, with 204 m of ascent; allow about 2 hours of walking. The stated level is medium. Start: the car park of the Pont Noir water sports centre, in La Méaugon. The official route, published by the Côtes-d’Armor département and updated on 11 September 2026, is shown on the map and can be downloaded as a GPX file to follow on your phone.
What you will see
- 7.3 km, about 2 hours
- 204 m of ascent
- Level: medium
- Loop: back to the starting point
- Saint-Barthélémy lake, 81 hectares
- Gouët dam, 45 m
Show 1 more pointHide
- Viaduct of the Paris-Brest line
Tips on the spot
- Start: the car park of the Pont Noir water sports centre, in La Méaugon.
- From the car park, go down to the lake and take the path on the right, which passes under the bridge.
- The trail is part of the “Balades en poche” collection, free from the Baie de Saint-Brieuc tourist office.
- The GPX track can be downloaded from the map: handy for staying on the right path at junctions.
Frequently asked questions
How long is the walk?
7.3 km, with 204 m of ascent, or about 2 hours of walking.
Where does it start?
The car park of the Pont Noir water sports centre, in La Méaugon. The route comes back to its starting point.
Source: Département des Côtes-d'Armor (PDIPR), Licence Ouverte 2.0, mise à jour du 2026-09-11 via data.gouv.fr, updated 11 September 2026.
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Traveller reviews
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