Tour of Lake Bosmeleac

A relaxing walk around the dam lake. The path along the banks is beautifully maintained.

The artificial reservoir was created by building a dam at the end of the 19th century to supply the Canal de Nantes à Brest during periods of water shortage. A gauge shows that the water level at the dam can reach 14 metres.

Details

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  • Walking
    Activity: Walking
  • ↔
    Distance: 3.86 km
  • ◔
    Average duration: 1h 05 
  • ▲
    Difficulty: Easy

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 8 m
  • ↘
    Descent: - 8 m

  • ▲
    Highest point: 179 m
  • ▼
    Lowest point: 164 m
  • ⚐ Country: France
  • ⚐ City: Merléac (22460)
  • ⚑
    Start/End: N 48.306571° / W 2.911922°
  • ❏
    IGN map(s): Ref. 0817SB, 0917SB
  • Hour-by-hour weather

Photos

Description of the walk

Park in the car park near the Kerigan Bridge, on the south shore of the lake.

(S/E) When you leave the car park, take the path on the right, heading east. Follow the lake on your left for about 1.3 km until you reach the dam.

(1) Take the steps on the left and walk along the top of the dam (view of the original valley floor with its waterfall).

(2) On the other side, turn left. Continue along the lake on your left and pass a campsite on your right. Walk along the lake for about 2 km until you reach the Pont de Perche bridge.

(3) Cross the bridge. On the other side, turn left onto the footpath closest to the water. You will soon reach the Pont de Kérigan bridge.

(4) Cross the bridge to return to the car park on the opposite bank (S/E).

Waypoints

  1. S/E : km 0 - alt. 172 m - Parking on the south bank - Pont de Kerigan (Bosméléac)
  2. 1 : km 1.23 - alt. 171 m - South shore - Le Saltimb'Arts
  3. 2 : km 1.34 - alt. 170 m - North bank of the dam - Lac de Bosméléac
  4. 3 : km 3.2 - alt. 172 m - Pont de la Perche (Allineuc)
  5. 4 : km 3.66 - alt. 170 m - North shore - Pont de Kerigan (Bosméléac)
  6. S/E : km 3.86 - alt. 172 m - Parking on the south bank - Pont de Kerigan (Bosméléac)

Notes

This is a very flat route with a few small hills that do not present any difficulty.

At the start, you will be under a magnificent canopy of trees.

Find out more about the lake.

Worth a visit

There is a campsite after point (2).

Near the dam, there is a summer bar and restaurant.

Reviews and comments

4.3 / 5
Based on 1 review

Reliability of the description
5 / 5
Ease of following the route
5 / 5
Route interest
3 / 5
pitouratapoil
pitouratapoil

Overall rating : 4.3 / 5

Date of your route : Nov 24, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★☆☆ Average
Very busy route : No

A well-maintained walk of about an hour, ideal for walking your dog safely, for example.

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