Route from the dam to Lake Saint-Barthélémy from Ploufragan

de fr

Stretching across 81 hectares, Lake Saint-Barthélémy is flanked by a path that winds through woodland and along the edges of fields. As you wander through this beautiful countryside, imposing structures come into view: the 45-metre-high Gouët Dam and the majestic viaduct of the Paris-Brest railway line.
The older village of La Méaugon boasts a wealth of picturesque architecture. The lake also conceals treasures from days gone by. Today, it is a delight for anglers and recreational boaters alike.

Details

n°67148687
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  • Walking
    Activity: Walking
  • ↔
    Distance: 4.32 mi
  • ◔
    Average duration: 2h 15 
  • ▲
    Difficulty: Moderate
  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 308 ft
  • ↘
    Descent: - 331 ft
  • ▲
    Highest point: 387 ft
  • ▼
    Lowest point: 240 ft
  • ⚐ Country: France
  • ⚐ City: Ploufragan (22440)
  • ⚑
    Start/End: N 48.489534° / W 2.84032°
  • ❏
    IGN map(s): Ref. 0916OT
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Photos

THE BRIDGE
Lake Saint-Barthelémy

Description of the walk

Start from the Pont-Noir car park on the edge of the D36.

(S/E) Leave the car park, cross the road carefully and head towards the path opposite. Turn right to reach a Fork in the road near the lake.

(1) Turn left until you reach a junction before the viaduct.

(2) Continue left, go under the viaduct and you’ll come to a Fork in the road.

(3) Keep left and continue to a junction, almost directly beneath a high-voltage power line.

(4) Turn left, cross the Gouët Dam and continue to the car park.

(5) Turn left towards the car park and continue straight on along the path until you reach a crossroad (Rue de la Pile).

(6) Turn left and follow the road until you reach a Fork in the road.

(7) Follow the path to the left and walk along the lake to the viaduct.

(8) Continue until you reach a road (Rue du Vau Briend).

(9) Head left and follow the road to the end of Rue du Vau Briend.

(10) Turn left and follow the road (D36) behind the safety barrier. Cross the bridge over Gouët and head to the Pont Noir car park (S/E).

Waypoints

  1. S/E : mi 0 - alt. 315 ft - Pont Noir car park - Gouët (fleuve)
  2. 1 : mi 0.23 - alt. 308 ft - Lake Saint-Barthélémy
  3. 2 : mi 0.73 - alt. 318 ft - Fork in the road before the Gouët Valley Viaduct
  4. 3 : mi 1.23 - alt. 335 ft - Crossroads
  5. 4 : mi 1.61 - alt. 387 ft - Crossroads towards the Gouët dam
  6. 5 : mi 1.95 - alt. 361 ft - Car park
  7. 6 : mi 2.58 - alt. 308 ft - Junction with Rue de la Pile
  8. 7 : mi 2.66 - alt. 312 ft - Fork in the road towards the path
  9. 8 : mi 3.28 - alt. 325 ft - Viaduct
  10. 9 : mi 3.76 - alt. 341 ft - Rue du Vau Briend
  11. 10 : mi 4 - alt. 328 ft - D36 towards Saint-Brieuc
  12. S/E : mi 4.32 - alt. 315 ft - Pont Noir car park

Notes

Transport:
Line 90 (TUB) “Point Noir” stop – 20 mins from Saint-Brieuc (does not run on Sundays)
Take the path to the right of the stop, then turn right. At the crossroads, take the path going uphill opposite and stay on the same path until you reach the viaduct.

(7) A few metres away, behind the church: Le p'tit BH, a pop-up café (food truck) from May to September.

The route is available free of charge from the Saint-Brieuc Bay Tourist Office

Worth a visit

- Saint-Barthélemy Lake and Dam.

Reviews and comments

4.9 / 5
Based on 3 reviews
Reliability of the description
5 / 5
Ease of following the route
5 / 5
Route interest
4.7 / 5
User 3435908

Overall rating : 4.7 / 5

Date of your route : Jun 09, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

Easy walk.

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CACOIN
CACOIN

Overall rating : 5 / 5

Date of your route : May 04, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

Walking around Lake St Barthélemy on a sunny Sunday with a few other people around (as you’d expect) is lovely. It’s an easy route with a few gentle climbs. There are some rather lovely views.
I’d recommend doing it as a leisurely stroll given the distance.

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rando2259
rando2259

Overall rating : 5 / 5

Date of your route : Feb 03, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A pleasant surprise: I was worried it would be a monotonous walk around the lake. But not at all. Steep paths through the woods. Narrow lanes. Footbridges. A lovely route for walking.
Two disappointments:
- the oak tree near the chapel is dead, cut down, and the remaining trunk is covered in ivy.
- following heavy rain, two sections along the lakeside were under water. We had to turn back. You need to bear this in mind depending on the weather in the days leading up to your visit and check the conditions.

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