Trieux Loop part 1 (Boucle du Trieux)

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Loop along part of the Trieux river towards the sea and back through the countryside.

Details

n°67447
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  • Walking
    Activity: Walking
  • ↔
    Distance: 8.38 km
  • ◔
    Average duration: 2h 45 
  • ▲
    Difficulty: Moderate
  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 133 m
  • ↘
    Descent: - 136 m
  • ▲
    Highest point: 60 m
  • ▼
    Lowest point: 0 m
  • ⚐ Country: France
  • ⚐ District: Paimpol (22500)
  • ⚑
    Start/End: N 48.77903° / W 3.092063°
  • ❏
    IGN map(s): Ref. 0814OT, 0815SB
  • Hour-by-hour weather
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Photos

View of the port of Lézardrieux
Kergrist chapel

Description of the walk

Start: Kergrist chapel on the old Lézardrieux-Paimpol road called Paimpol through Kergrist.
Signs: GR®34 in part and Yellow in part

(S/E) : Walk along the Kergrist chapel by the cloister, then cross the road at the pedestrian crossing and take the "Traou Vantan" marked path on the right, which joins the GR®34. Note the wash-house and the fountain.

(1) Follow this path along the banks of the Trieux river, offering a fine view of the Lézardrieux marina on the opposite shore.

(2) Leave a path on the right, this will be the return path.

(3) Pass behind the maritime high school, then the nautical center, and continue along the Goelo flora and fauna trail to reach the beach "Plage de Coz-Castel", ideal for a break.

(4) Leave the GR® and take the small road that climbs to the right of the Glénans nautical center.
Pass the "Trieux" marine farm on the left.

(5) Shortly afterwards, when the road bends, turn left onto the botanical path. Join a farm track where you turn right twice to reach "Landéby" town. Note the stele of Saint-Yves dating from 1737 on the right.

(6) Turn right towards Kerlo town, pass the road leading to this hamlet and take a wide path to the left (hent Fentan Vihan).

(7) Reach a fountain and continue on to Traou Vilin town. Follow the "Trieux" path. Pass Toul Mezou then Kermarec towns.

(8) Turn right at the GR® sign and follow the marks to reach the Trieux river.

(2) Turn left, and return back upstream.
Return to the chapel along the "Traou Vantan" path (S/E).

Waypoints

  1. S/E : km 0 - alt. 46 m - Chapel of Kergrist
  2. 1 : km 0.19 - alt. 31 m - Junction GR34
  3. 2 : km 0.63 - alt. 11 m - Carrefour de la boucle
  4. 3 : km 1.52 - alt. 34 m - Bypassing the maritime college
  5. 4 : km 3.34 - alt. 5 m - Turn right - Plage du - Trieux (fleuve)
  6. 5 : km 3.76 - alt. 25 m - To the left, botanical trail
  7. 6 : km 4.71 - alt. 59 m - Saint-Yves stele
  8. 7 : km 5.8 - alt. 44 m - Fountain
  9. 8 : km 7.31 - alt. 54 m - GR on the right
  10. S/E : km 8.38 - alt. 46 m - Chapel of Kergrist

Worth a visit

Always be cautious and plan ahead when you're outdoors. Visorando and the author of this route cannot be held responsible for any accidents occurring on this route.

The GR® and PR® markings are the intellectual property of the Fédération Française de Randonnée Pédestre.

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Reviews and comments

4.5 / 5
Based on 21 reviews
Reliability of the description
4.5 / 5
Ease of following the route
4.4 / 5
Route interest
4.5 / 5
User 24775016

Overall rating : 3.7 / 5

Date of your route : Apr 06, 2026
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★☆ Good
Very busy route : No

A lovely view of the Trieux. Set between the river and the forest. Please be careful, as the path can be quite uneven in places due to tree roots.

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User 19417368

Overall rating : 5 / 5

Date of your route : Nov 14, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

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@joel
@joel

Overall rating : 5 / 5

Date of your route : Jan 27, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

parish specific to Brittany, with a first part along the Trieux but the 2nd part even if it is in the countryside is good too.

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guimauve
guimauve

Overall rating : 5 / 5

Date of your route : Sep 21, 2022
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A fine walk on dry ground, relatively easy and fairly well signposted along the Trieux. A little less so in the countryside, where the Visorando map was useful. Magnificent sunny day.

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RogerP
RogerP

Overall rating : 4.7 / 5

Date of your route : Jun 27, 2022
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

The grassy part of the route is lightly used, which may be normal for a hike in early June.

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grandiere
grandiere

Overall rating : 4.7 / 5

Date of your route : Oct 15, 2020
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

The first part is more interesting than the second, but that's to be expected if you don't want to come back along the same route, as the 'countryside' part is sometimes less attractive than following the Trieux. The route is easy and quite practicable despite the recent rain. GPS useful in places. A pleasant walk

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playmobile
playmobile

Overall rating : 3.7 / 5

Date of your route : Jul 27, 2020
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★☆☆ Average
Very busy route : No

In my opinion, the part of the hike shared with the GR 34 is good.
The rest of the route is less interesting and less frequented.
I agree with the opinions of Flore 13200 and Elies.

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jpdeco22
jpdeco22

Overall rating : 4.3 / 5

Date of your route : May 17, 2019
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good

Hiking with your dog isn't easy, and given our age (in our seventies) it was an easy hike with a few minor difficulties to spice things up.
We really enjoyed it.
Well done

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gazok54
gazok54 ★

Thanks to both of you
It's not easy to please everyone.

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plapous
plapous

For my part, I did this loop without any problems and without GPS, the data from visorando being more than sufficient.

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Flore13200
Flore13200

I'm well aware that waymarking is not your responsibility.
It was more of a warning.
It was difficult for us to get our bearings with just the description and the map on the sheet for this particular section. It's better to have a GPS just in case for this section.

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gazok54
gazok54 ★

Thank you Flore13200
Signposting is not essential, as Visorando offers you descriptions and routes based on the IGN map, which are more than enough to guide you.
What's more, we have no control over waymarking.

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Flore13200
Flore13200

Overall rating : 4 / 5

Date of your route : Apr 22, 2019
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good

Nice walk on the first part by the sea. Everything up to the 4th is very well signposted. The return section is more tarmac and less interesting.
However, we took a wrong turn before reaching point 7: the passage between Kerlo and the fountain is rather unclear and there are no signs there. The GPS helped us find our way back.

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Chipoman22450
Chipoman22450

Overall rating : 5 / 5

Date of your route : Mar 03, 2019
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good

A walk in the sun with the children. We didn't go all the way round; you can cut the walk in half at the kerloury cove.
The path is very accessible and well signposted.
We'll try to do the whole thing.

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plapous
plapous

Overall rating : 5 / 5

Date of your route : Jan 23, 2019
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good

A slightly strenuous route, compensated by some magnificent scenery! There is no car park at the Chapelle Kergrist. For a group hike, I parked in the Lédano car park on the banks of the Trieux. This extended the circuit by about 1 km.

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