There are several lodges and campsites in Caurel where you can stay overnight and stock up on supplies.
The entire route around the lake is open only from 1 March to 15 September (excluding the hunting season).
Two-day tour of Lake Guerlédan
A superb hike taking place largely through woodland, with magnificent views of the lake from the highest points. Some sections of the trail are quite steep, ideal for a good leg workout, but over short distances. Walking poles may be useful for those less confident on their feet. There are numerous lodges and campsites available for overnight stays. There are seven different starting points; check the lake’s website http://www.lacdeguerledan.com/ for details.
The trail is very well signposted with “Sentier de Guerlédan” markers throughout the route and the red and white markings ofthe GR® 341 andGR® 37. A few paths branch off the main trail to stay close to the lake or climb a little higher into the forest, but always rejoin the main trail.
Please note! The entire route around the lake is open from 1 March to 15 September. Outside this period, sections of the trail are closed for hunting.
Details
Creation:
Last update:
Last review:
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Activity: Walking -
Distance: 35.62 km -
Average duration: 2 days -
Difficulty: Difficult -
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Back to start: Yes -
Ascent: + 482 m -
Descent: - 489 m -
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Highest point: 181 m -
Lowest point: 81 m
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Country:
France
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District:
Saint-Aignan (Morbihan) (56480) -
Start/End: N 48.201427° / W 3.069274° -
Hour-by-hour weather
Photos
Stages of the route
This route needs several days, find the details below:
Notes
Reviews and comments
4.9 / 5
Based on 4 reviews
Reliability of the description
4.8 / 5
4.8 / 5
Ease of following the route
5 / 5
5 / 5
Route interest
5 / 5
5 / 5
philpertho
Overall rating : 5 / 5
Date of your route : Apr 13, 2026
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No
A route for those who aren't familiar with it. Very challenging.
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vintage
Overall rating : 4.7 / 5
Date of your route : Jul 30, 2025
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes
The starting and finishing points are ideal because they allow you to spread the difficulty of the northern section over two days.
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Guèn
Hello Joce961,
There are several official campsites around the lake where you can pitch your tent: Anse de Sordan campsite; Lac à Beau-Rivage campsite; Le Point de Vue campsite at Rond Point du Lac.
As for wild camping, it is forbidden to set up camp in the Quénécan forest between the Bellevue lock and Anse de Sordan, as this is a protected nature reserve (signs indicate the entrance and exit of this section of the trail). Otherwise, please do not leave any rubbish behind, do not light fires and do not disturb the wildlife.
Enjoy your hike!
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karen35
Overall rating : 5 / 5
Date of your route : Sep 14, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No
A lovely walk with stunning views, especially on the Côte d'Armor side. The route is well signposted and well maintained. It makes you want to tackle the 51km route (next time I’ll do it with a bivouac).
It was easy to strike up a conversation with the other hikers we met!
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Cyrillis
A superb hike with a wide variety of scenery for a lakeside route, featuring climbs that feel just like mountain trails.
Well signposted, great for a group walk.
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Guilbreizh
Overall rating : 5 / 5
Date of your route : Mar 05, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No
A very pleasant, lovely, picturesque and easy walk along the river, which does, however, pass through some rather soggy marshy areas.
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Other walks in the area
Anse de Sordan - Le Mané
Visorando member
17.21 km
+269 m
-271 m
5h 40
Moderate
Departure from Saint-Aignan (Morbihan) (Morbihan)
First section of the tour around Lake Guerlédan, Brittany’s largest lake. Departure from Anse de Sordan towards Le Mané, passing by the Guerlédan dam. This route follows the eastern shore of the lake.
Tour of Butte de Malvran
Visorando member 5.15 km
+157 m
-151 m
1h 55
Easy
Departure from Saint-Aignan (Morbihan) (Morbihan)
A beautiful route that initially follows the edge of Lake Guerlédan via theGR® 341, then climbs up to the Butte de Malvran, which overlooks the surrounding area.
Lake Guerlédan - Anse de Sordan - Bon Repos Abbey
Visorando member 
17.66 km
+235 m
-241 m
5h 45
Moderate
Departure from Saint-Aignan (Morbihan) (Morbihan)
A lovely hike that allows you to discover the shores of Lake Guerlédan. Start at Anse de Sordan and walk back up to Bon Repos Abbey.
Le Mané - Anse de Sordan
Visorando member
18.39 km
+214 m
-217 m
5h 50
Moderate
Departure from Caurel (Côtes-d'Armor)
The second part of the tour of Lake Guerlédan, the most physically demanding, particularly at the start. Departure from Le Manet towards Anse de Sordan, passing by the former Abbey of Notre-Dame de Bon Repos. Return route via the western side of the lake.
Caurel Woods and Lake Guerlédan
Visorando member 
15.79 km
+228 m
-235 m
5h 10
Moderate
Departure from Caurel (Côtes-d'Armor)
This hike was completed and written during the summer of 2015, an exceptional period when the lake was drained for dam maintenance.We invite hikers to do this walk in spring, when the colours and scents are at their best, with the clear waters of the lake as a backdrop.
Since 2024, major work has been underway between points 3 and 4 with a view to building a free Himalayan footbridge for crossing the Blavet, which cuts the complete tour of the lake in two. This will still be possible for the most experienced walkers. (See note in "Practical information".
Lake Guerlédan and Caurel Woods
Association / Club / Walk leader 9.33 km
+67 m
-70 m
2h 50
Easy
Departure from Mûr-de-Bretagne (Côtes-d'Armor)
This hike will take you to Porz Braz along the Anse de Landroanec, then the Bois de Caurel. You will pass the prehistoric camp of Castel Finans before going back up through the woods and returning to Porz Braz.
Guerlédan Lake and Dam
Association / Club / Walk leader 5.60 km
+146 m
-142 m
2h 00
Easy
Departure from Mûr-de-Bretagne (Côtes-d'Armor)
Starting from the Mileade centre, this hike will take you along Lake Guerlédan to the dam. On the way back, you can take a break at the leisure centre before crossing the Bois Cornec.
The Nantes–Brest Canal between the Guerlédan Dam and Saint-Aignan
Visorando member 
7.37 km
+105 m
-105 m
2h 25
Easy
Departure from Mûr-de-Bretagne (Côtes-d'Armor)
Between the Côtes-d'Armor and Morbihan. Following the Guerlédan trail, you climb up to overlook the dam built around 1930 to supply the region with electricity, then through heathland and woods, you descend to the Nantes–Brest Canal.
As you pass through the village of Saint-Aignan, you’ll come past an interesting little church and the electricity museum. Also worth seeing on the way out of the village is the small Saint-Aignan dam.
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