From Tonquédec to the castle ruins via the Léguer

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There is virtually no elevation gain on this walk in the Trégor forest. Just magnificent scenery, starting with paths through chestnut trees, then a walk along the banks of the Léguer, ending with a visit to the imposing ruins of Tonquédec Castle. At the end of the walk, don't forget to visit the village church.

Details

n°412128
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  • Walking
    Activity: Walking
  • ↔
    Distance: 11.68 km
  • ◔
    Average duration: 3h 40 
  • ▲
    Difficulty: Moderate
  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 113 m
  • ↘
    Descent: - 116 m
  • ▲
    Highest point: 101 m
  • ▼
    Lowest point: 20 m
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Description of the walk

Parking: Place de l'Église in Tonquédec.

(S/E) With your back to the church, set off along Rue Anjela Duval, heading south-west.
Take the first street on the left, then after 30 metres follow a path that goes around a building. Follow it on the left, then take the 90° right turn and continue straight ahead into the housing estate. Cross a service road and continue straight ahead. The path turns 90° to the left and leads to a road on the right.

(1) At the junction, turn left. After about 100 metres, the street becomes a path. Continue along this path. When it ends at another path, follow this path to the right.

(2) Take the path on the right. It will bend to the left and then to the right, ending at a road in Convenant Jugard.
Turn left onto this road. At the fork, continue on the left.

(3) Take the path on the right. At the end, turn left at the hairpin bend. Continue straight ahead when the path joins a road and straight ahead at the crossroads.

(4) At Kerdouca, turn right onto a path that is not shown on maps. It heads almost due south and joins the D30 departmental road.

(5) Cross and continue straight ahead. Continue along the path, turning right once, passing under a high-voltage power line and turning right a second time. Follow theGR®34Auntil you reach (6).
After following the D30 and then taking it for 50 metres, take the path on the right before the bend to reach the banks of the Léguer.

(6) While theGR®34Acontinues to the left, turn right and continue north, staying as close to the river as possible.
Be careful: in some places, natural erosion has hollowed out the path, making the ground unstable.
Continue to the Moulin de Kergrist.

(7) Turn left, leaving the right bank, and cross the river via the two footbridges and then the stone slab.

Red and white markings forthe GR®34A

Turn right to follow the Léguer along its left bank.
Continue straight ahead to the Kergrot Mill. Continue north-northeast, following the river until you reach a road.

(8) Turn right and cross the bridge. On the left, among the trees, you can see the ruins of the tower of Tonquédec Castle. Continue along the road; there is a footpath on the left-hand side.

(9) Pass the entrance to Tonquédec Castle on your left (private property) and continue along the road. After 300 metres, you will see a hairpin bend on your left. Take this bend and head north.
At the crossroads, turn right and you will come to a road. Turn right.

Off the marked trail

Leave theGR®34Aon the left and turn right. Follow this road on the left and turn right at the crossroads with a calvary.

(10) Before the stop sign with the D113, take the path on the left. At the fork, turn right and continue straight ahead on the road. Join the D113, continue to the left, pass in front of the church and reach the car park (S/E).

Waypoints

  1. S/E : km 0 - alt. 92 m - Car park - in front of the village church.
  2. 1 : km 0.55 - alt. 98 m - Turn left towards Kerfinit.
  3. 2 : km 1.55 - alt. 95 m - Path on the right
  4. 3 : km 2.83 - alt. 92 m - Path on the right
  5. 4 : km 4.19 - alt. 81 m - Path (not shown on the map) on the right
  6. 5 : km 4.7 - alt. 85 m - Cross the D30.
  7. 6 : km 5.68 - alt. 30 m - Turn right to follow the river. - Léguer (le)
  8. 7 : km 7.28 - alt. 28 m - Crossing the Léguer
  9. 8 : km 9.16 - alt. 26 m - Bridge
  10. 9 : km 9.54 - alt. 49 m - Château de Tonquédec
  11. 10 : km 11.01 - alt. 78 m - At the stop sign, take the path on the left.
  12. S/E : km 11.68 - alt. 92 m - Car park - in front of the village church.

Worth a visit

Nearby: Kergrist Castle. To get there: after the (7) and after crossing the Léguer, instead of turning right, continue straight ahead. The castle is a quarter of an hour's walk away. On the way back, before the Léguer, turn left to rejoin the route.

At Tonquédec Castle (9), you will join the (S/E) of the "Tonquédec Castle and Kerfons Chapel" route.
In the village of Tonquédec (S/E), you will also find the (S/E) for the "East of Tonquédec" route.

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

3.8 / 5
Based on 16 reviews
Reliability of the description
3.3 / 5
Ease of following the route
3.9 / 5
Route interest
4.2 / 5
fps
fps

Overall rating : 4.5 / 5

Date of your route : Dec 15, 2025
Reliability of the description : Not used / Not applicable
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

Beautiful route with very little traffic, so ideal for walking the dog.

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User 2582897

Overall rating : 4 / 5

Date of your route : Oct 04, 2025
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : Yes

an interesting route combined with that of the Kerfons chapel (about 19 km), very green, chestnuts, which slow down the walk, one or two tricky sections along the river but it's fine. The description is accurate but always take a map with you

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Laita
Laita

Overall rating : 4 / 5

Date of your route : Sep 09, 2025
Reliability of the description : ★★★★☆ Good
Ease of following the route : Not used / Not applicable
Route interest : ★★★★☆ Good
Very busy route : No

Lovely walk along the Leguer, shame I left my mobile in the car but I don't think I missed anything
of the route.

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User 26624606

Overall rating : 5 / 5

Date of your route : Jul 21, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

The entire hike was a delight. We were able to follow the planned route without any difficulty, even with two children aged 11 and 14. Discovering the bed of the Léguer river, strewn with pebbles that glowed ruby red in the sun, was enchanting! The children were able to dip their feet in the river, climb on the rocks, etc., without any danger. The path was easy and well cleared. Pure pleasure. Thank you, Visorando!

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Henri Lecler
Henri Lecler

Overall rating : 4 / 5

Date of your route : Mar 30, 2024
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★★ Very good
Very busy route : Yes

Hike completed on 28 March 2024 after Storm Nelson. The path is flooded in places, resembling a pond between points 1 and 3, forcing us to walk through the fields, otherwise it is passable. Between points 4 and 5, numerous trees are blocking the path, forcing us to leave it. There are also landslides. We opted for the path heading west (just above mark 5 on the map). It joins Léguer a little further on. The path is very well maintained. This option is recommended. The hike is magnificent.

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gwen.cc
gwen.cc

Overall rating : 4.3 / 5

Date of your route : Aug 08, 2022
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

A very beautiful walk in the Tonquédec area.
The section along the Léguer river (section 6) is tricky because it is very narrow with collapsed sections that are clearly rarely used (a walking stick is recommended to clear brambles and nettles).

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NatVal22
NatVal22

Overall rating : 3 / 5

Date of your route : Jul 13, 2021
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★☆☆☆ Disappointing
Route interest : ★★★★☆ Good
Very busy route : No

poorly signposted route
We had to turn back several times or ask local residents for directions to the next point.
A shame, as the site is very beautiful.

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Guitoune22
Guitoune22

Overall rating : 3.7 / 5

Date of your route : Oct 22, 2020
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★★ Very good
Very busy route : No

Description and map route average at the start and before rejoining the GR
Shortly before the Saint Fiacre chapel, we were unable to take the path, which was flooded, so we turned back along the road
What a shame!
Otherwise, a very beautiful hike

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CDRU
CDRU

Overall rating : 4 / 5

Date of your route : Jul 05, 2020
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : Yes

Very good route, but difficult to find the right path at the start. It would be helpful to specify that on Angela Duval Road, you should take the path between the school and the village hall, then follow the path through the housing estate, and then follow the description.
Be sure to wear sturdy shoes, as the path along the Léguer river is poorly maintained. Wear trousers rather than shorts.

An interesting, peaceful and pleasant route.
Don't hesitate to give it a go.

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Galius
Galius

Overall rating : 3.7 / 5

Date of your route : Jun 29, 2020
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

The beginning of the route is beautiful and very well maintained, but the second half takes you through ferns and brambles all the way to the mill, which is a shame.

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chorus22000
chorus22000

Overall rating : 3.7 / 5

Date of your route : Jun 06, 2020
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

I should add that there are no markings outside the GR 34, which is a shame, but we manage thanks to our own sense of direction.

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chorus22000
chorus22000

Overall rating : 3.3 / 5

Date of your route : Jun 06, 2020
Reliability of the description : ★★☆☆☆ Disappointing
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

The map layout is fine, but the description is incorrect after the place called Kerdouca. The path does exist, but it says to turn right first, when you actually have to turn left before Kerivoallan, which is not on the path, although there is a chapel there. On the map, the place called Kerdouca is incorrectly located in relation to the description.

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vgg
vgg

Overall rating : 4.3 / 5

Date of your route : Feb 02, 2020
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good

A very beautiful hike starting from the banks of the Léguer.
The start of the hike, from Tonquédec church, is of no interest to me.
What's more, many of the paths that should lead from Tonquédec are not maintained and have become "dumping grounds for the surrounding fields." I don't understand how the local council can allow this to happen.

Once again, the banks of the Léguer, the mills and the castle ruins are all magnificent. As for the rest, the local council needs to look into improving and rehabilitating the paths.

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grandin
grandin ★
• Edited:

The Visorandonneurs describe routes that they have enjoyed, but of course, paths change over time. Even the PRs are sometimes a little overgrown...

Thank you for your comment, however. Future hikers will be warned and can let us know if these paths improve or deteriorate.

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emma.go
emma.go

Overall rating : 2 / 5

Date of your route : Jul 02, 2018
Reliability of the description : ★☆☆☆☆ Very disappointing
Ease of following the route : ★★★★☆ Good
Route interest : ★☆☆☆☆ Very disappointing

It is unacceptable to offer this type of hike.
The paths are not maintained (as are the PRs) with nettles, brambles and other vegetation... and the entire section along the Léguer was like this. What's more, this path is starting to fall into disrepair, and it is very dangerous to use!
Instead of being enjoyable, this hike was a real nightmare.
It is better to take the well-marked 9 km PR trail that starts at the Château de Tonquedec.

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Other walks in the area

Walking Tonquédec Castle and Kerfons Chapel

Visorando member
Château de Tonquédec et Chapelle de Kerfons
↔7.88 km ↗+196 m ↘-193 m ◔2h 50 ▲Easy
⚑Departure from Tonquédec (Côtes-d'Armor)
There are two historic sites along this walk: Tonquédec Castle with its walls and restoration work, and the magnificent little Kerfons Chapel. All this is complemented by a relaxing walk along the Léguer river.

Walking Tonquédec Forest

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↔4.99 km ↗+65 m ↘-55 m ◔1h 35 ▲Moderate
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A refreshing walk through the woods and along the Léguer.

Walking Les Sept-Saints and the Léguer Valley

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Forest paths and sunken lanes lead walkers along the "Sentier des Améthystes" (Amethyst Trail) alongside the Léguer and then the Saint-Éturien stream, before arriving at a centuries-old beech tree. The walk starts and ends at the Chapelle des Sept-Saints: a place of great significance for the friendship between Islam and Christianity.

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This walk through the heritage of Rospez is offered by the "heritage" group of the "Ro'Spered" association. The remarkable sites linked together are very diverse: parish church, chapels, fountain, crosses or calvaries, flax scutching machine, Bronze Age tumulus, restored wash house... crossroads of three Roman roads... A hike through the Rospez countryside, discovering the remains of a past dating back nearly three millennia...

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Downstream from Lannion, the Léguer is fed by several streams: the Porz al Lan, the Kerlouzouen and the Pontol. After following the Léguer, we invite you to explore these streams, which are part of the charm of this region. All that remains is to let your imagination take you back in time to when the various mills along the banks were still in operation, washing flax and hemp and, in some cases, grinding wheat.

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The aim is to follow the course of the Saint-Éturien stream and then the Léguer river from Plouaret-Trégor station to Lannion station. Plan to return by train.

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↔12.61 km ↗+137 m ↘-137 m ◔4h 00 ▲Moderate
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At high tide, the Léguer reaches its maximum level. The landscape is then truly beautiful, provided the sun is shining. The green of the trees is reflected among the boats on the blue water. At low tide, the landscape is different and the bottom of the Léguer, which is sometimes muddy, gives this coastal river a different appearance.

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