Yeun Elez route around Lake Saint-Michel

A beautiful hike around Lake Saint-Michel, with views of the Monts d'Arrée, discovering the Yeun Elez peat bogs, menhirs and legends dear to the writer Anatole Le Braz.

Details

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  • Walking
    Activity: Walking
  • ↔
    Distance: 14.95 km
  • ◔
    Average duration: 4h 25 
  • ▲
    Difficulty: Moderate

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 44 m
  • ↘
    Descent: - 43 m

  • ▲
    Highest point: 268 m
  • ▼
    Lowest point: 219 m

Photos

Description of the walk

Parking is available at the Nestavel Bihan car park in the commune of Brennilis.

(S/E) From the Nestavel Bihan car park, head towards the village and the dam, then follow the banks of Lake Saint-Michel northwards. Continue to the municipal campsite.

(1) Continue left along the lake and follow a dirt track, which can be wet and muddy in places, towards the Venec bog, a designated National Nature Reserve. Stay on the track until you reach the road.

(2) Turn left and continue to the crossroads.

(3) Turn left again until you reach the three-way junction. Continue to the three-way junction.

(4) Leave the road and take the middle path, which you should follow until the first fork (approximately 800 m).

(5) Turn left and take the path leading to the Roudouhir stream. Cross it and take the footbridges to cross the marshes to the tarmac road.

(6) Continue straight ahead along a path leading to Kernévez.

(7) Leave the hamlet on your right and head left until you reach the first fork.

(8) Turn right onto a gravel path that crosses the Stêr-Red and Ellez streams in succession.

(9) Continue straight ahead on the dyke and footbridges until you reach the first crossroads.

(10) Turn left. Continue straight ahead towards the east to pass at the foot of Roc'h Cléguer (316 m) and continue to the local road, first turn right then left.

(11) Follow this road to the left until you reach the entrance to the hamlet of Forc'han, keeping to the left.

(12) At the crossroads in the hamlet, keep left, then follow the road that continues on. Continue to the end.

(13) Follow a sunken lane, pass the Maison du Lac (EDF) and turn right, keeping as close as possible to the lake.

(14) Head left towards the dam and cross the Ellez, following the signs to the starting point at Nestavel Bihan (S/E).

Waypoints

  1. S/E : km 0 - alt. 225 m - Nestavel Bihan car park
  2. 1 : km 1.03 - alt. 229 m - Brennilis municipal campsite
  3. 2 : km 1.85 - alt. 229 m - Fork in the road
  4. 3 : km 2.23 - alt. 229 m - Crossroads towards the bog
  5. 4 : km 2.79 - alt. 232 m - Three-way junction
  6. 5 : km 3.59 - alt. 241 m - Fork
  7. 6 : km 5.12 - alt. 234 m - Tarmac road
  8. 7 : km 6.21 - alt. 248 m - Kernévez
  9. 8 : km 6.55 - alt. 239 m - Fork in the gravel path.
  10. 9 : km 7.74 - alt. 228 m - Dike and footbridges over streams - Ellez (rivière) - Affluent de l'Aulne
  11. 10 : km 9.06 - alt. 259 m - Fork
  12. 11 : km 11.96 - alt. 253 m - Fork in the road on the local road.
  13. 12 : km 13.67 - alt. 231 m - Forc'han
  14. 13 : km 14.17 - alt. 236 m - Sunken path near the Maison du Lac
  15. 14 : km 14.63 - alt. 226 m - Dam and crossing of the Ellez river
  16. S/E : km 14.95 - alt. 225 m - Nestavel Bihan car park

Notes

This route is part of the Monts d'Arrée Community's "walking routes".

Please note: this route includes sections reserved exclusively for pedestrians (footbridges over peat bogs).

Worth a visit

Reviews and comments

4.6 / 5
Based on 8 reviews

Reliability of the description
4.7 / 5
Ease of following the route
4.8 / 5
Route interest
4.3 / 5
Igor le breton
Igor le breton

For me, it's impossible at this time of year, it's completely swampy in places.
The paths are there, but we tend to use the sides more. That is, if it hasn't rained for a few days.

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sergec35
sergec35

Hello, We will be in the area in early October 2026. Do you think this route is suitable for Joëlette wheelchairs, as there are no significant elevation changes? Are the footbridges over the streams in good enough condition? At this time of year, how accessible are the bog areas in general? Thank you in advance (https://joailettes35.jimdofree.com)

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Igor le breton
Igor le breton

Overall rating : 4.7 / 5

Date of your route : Nov 19, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

High-top shoes soaked by water, it had rained earlier!
A magnificent hike, with a clear view of the lake and varied scenery along the route.

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Picson06230
Picson06230

A very varied walk, with everything from warm sunshine to heavy rain and fairly strong winds.
Many sections of the path are flooded, so high-top shoes are necessary unless you don't mind getting your feet wet
If you feel up to it, don't hesitate to visit the megalithic sites and, above all, push on to the chapel of St Michel de Brasparts, where the view is superb.
On the first part of the walk, there are some very interesting information boards explaining the peat bogs and the surrounding nature.

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MatthieuGD
MatthieuGD
• Edited:

Overall rating : 5 / 5

Date of your route : Aug 24, 2025
Reliability of the description : Not used / Not applicable
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

Done in sunny weather (~30°C), until the 8th and despite the small road (not very busy) at times, very pleasant for the shade and the heathland here and there.
The footbridge/moorland section is nice from about 8 to 10, but don't plan on taking any long breaks, as the moors stretch as far as the eye can see in the sun.
From point 10 onwards, the route is more conventional, even becoming a road towards the end, and less interesting, except for the slightly easier view of the lake.
We enjoyed having the Saint-Michel mountain chapel as a common thread, which we got closer to and which overlooks the lake in the distance.
This is a walk to try in other seasons to see the variations in the landscape.
PS: we tried the peninsula (as an alternative to extend the walk a little) towards point 4, but it only led to a cornfield, so we don't recommend it (the best view of the lake is still at the start of the walk).

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dlt80
dlt80

Overall rating : 4.7 / 5

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

A lovely walk, done in dry weather, which made the section through the peat bogs (between points 9 and 10, marked as Youdig on the map) easier. It should be noted that there is no shade in this section, which is about 3.5 km long. The arrival at the small wood under Roch Cleder was a welcome opportunity to rest and have a picnic. I found the tarmac sections a little long (about 2.5 km in total). Otherwise, it's a really pleasant walk, accessible to all, with birdsong for company. We finished with a swim in the lake, but there are no lifeguards, so keep an eye on the children!

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pjp
pjp

Overall rating : 4.7 / 5

Date of your route : Apr 14, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

Very beautiful landscape, moorland and chapel on high ground.

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GiGu
GiGu

Overall rating : 3 / 5

Date of your route : Oct 28, 2024
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★★☆ Good
Route interest : ★★☆☆☆ Disappointing
Very busy route : No

Lake Brennilis is pretty, but mainly because of the peat bogs, the hiking trail passes quite far from the lake (and often does not allow you to see it). Above all, when we did the hike (in good weather, at the end of October) at the Roudouhir stream (5), the footbridges were damaged, very slippery and led to a muddy area that made us give up on continuing the hike, which would have required boots rather than simple walking shoes.

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pokesde
pokesde

Overall rating : 4.7 / 5

Date of your route : Aug 12, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

A magnificent hike in beautiful weather (30°C). Perfect signage.
Despite a few sections on tarmac roads,
there were wonderful views of the lake and peat bogs, with Mont Saint-Michel de Brasparts and its magnificent chapel in the background.

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Arthur 29
Arthur 29

Overall rating : 5 / 5

Date of your route : Apr 22, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

A beautiful route around Lake Saint Michel. With incredible passages over footbridges and lunar landscapes. Superb!!!!

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BSA
BSA

Overall rating : 5 / 5

Date of your route : Mar 15, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

Tour of the lake made difficult this season due to bad weather. So muddy and very wet, but easy and accessible to all. Alone in the world in an unusual landscape! Bring your boots and you're good to go! Excellent signage.

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