Saint-Uzec et l'Île Grande

Lorsque l'on pense "Mégalithes" en Bretagne, c'est à Carnac et ses alignements que l'on pense en premier. Mais il faut savoir que partout en Bretagne il en existe une multitude. Le Trégor est riche de ces monuments datant de plusieurs millénaires. Au cours de cette randonnée, vous en verrez certains mais vous découvrirez aussi une superbe île aux paysages variant suivant la situation aux vents.

Technical sheet

184843
Creation:
Last update:
Last review:
  • Walking
    Activity: Walking
  • ↔
    Distance: 11.63 km
  • ◔
    Average duration: 3h 35 
  • ▲
    Difficulty: Moderate

  • ⚐
    Back to start: Yes
  • ↗
    Vertical gain: + 101 m
  • ↘
    Vertical drop: - 100 m

  • ▲
    Highest point: 65 m
  • ▼
    Lowest point: 3 m

Photos

Description of the walk

This walk starts from the car park near the Menhir de Saint-Uzec.

(S/E) Leaving the menhir on your right, head west to take the Route du Menhir. As you approach the village of Penvern, it joins the Route de l'Ile Grande. Follow the road to the right to walk along the Kerhuel stream.

Turn left onto the D788 (departmental road between Trégastel and Trébeurden; be careful, this road is busy).

(1) If the tide is low, turn right and follow the shore to the bridge (option shown on the map). Otherwise, unfortunately, you will have to take the road on the right (50 metres further on).

(2) This is where the Île Grande circuit begins. Turn right and, at the end of the street, turn right again to take the customs officers' path. Follow it along the shore to reach the car park of the island's water sports centre.

(3) Pass the nautical centre and continue along the beach, heading north then east.

(4) Leave the seafront by taking the path on the left. It climbs up to a panoramic viewpoint over the whole island.

(5) Continue along the path that leads to Rue du Dolmen.

(6) You will see the Île Grande covered walkway on your right. At the crossroads, turn right onto Chemin de Castel Vran, then turn left onto Chemin de la Lande.

(7) Turn left to rejoin the path around the island, which ends at the bridge.

(2) Turn right onto the D21 to cross the bridge.

(8) Leave the D21 and take the path on the right. At the fork, continue on your left and then go straight ahead when the path makes a hairpin bend. Cross the D788 and take the Traverse de Bastillien Brian opposite.

(9) At the junction with Rue de l'Armor, turn right and then immediately left onto Chemin de Leur Adellan, which continues as a forest path with a steep climb.

(10) At the fork at the top of the hill, take the path on the left. Pass close to a water tower and continue south-east to a crossroads.

(11) Turn left (Chemin de Kerglet). After passing through Kerhuel, turn left towards Saint-Uzec. In the distance on your right, you will see a large white ball: this is the radome of the Pleumeur Bodou space telecommunications station.

(12) After the Chapel of Saint-Uzec, turn left to join the D21. Opposite and on your left, you will see the path you need to take to reach the car park at the start of the walk, after a hairpin bend to the right.

Waypoints

  1. S/E : km 0 - alt. 34 m - Car park at - Menhir de Saint-Uzec
  2. 1 : km 1.13 - alt. 5 m - At low tide, turn right
  3. 2 : km 2.51 - alt. 8 m - After the bridge, turn right
  4. 3 : km 4 - alt. 8 m - Porz Gelen water sports centre
  5. 4 : km 4.8 - alt. 10 m - Leave the customs path and take the path on the left
  6. 5 : km 4.96 - alt. 27 m - Panoramic view of Île Grande
  7. 6 : km 5.23 - alt. 28 m - Allée couverte de l'Île Grande
  8. 7 : km 6.23 - alt. 5 m - Turn left onto the path around the island
  9. 8 : km 7.2 - alt. 6 m - Leave the D21 and take the path on the right - Allée Couverte de Prajou-Menhir
  10. 9 : km 8.17 - alt. 10 m - Rue de l'Armor, first turn right then left
  11. 10 : km 8.89 - alt. 53 m - At the top of the hill, take the path on the left
  12. 11 : km 9.97 - alt. 64 m - Crossroads
  13. 12 : km 10.69 - alt. 36 m - Chapel of Saint-Uzec
  14. S/E : km 11.63 - alt. 34 m

Practical information

Note: between (4) and (7) we suggest crossing the island, but the tour of the island (7.5 km in total) can be continued via Porz Guen, the ornithological station and Pointe de Toul ar Staon, as well as Pointe Saint-Sauveur. This variation adds 3.2 km to the route. Another Visorandeur member has described the complete tour of the island by doing it in the opposite direction.

In the nearby area

Reviews and comments

4.4 / 5
Based on 16 reviews

Reliability of the description
4.1 / 5
Clarity of route map
4.3 / 5
Route interest
4.8 / 5
kar76
kar76

Overall rating : 4 / 5

Date of walk : Sep 20, 2025
Reliability of the description : ★★★★☆ Good
Clarity of route map : ★★★★☆ Good
Route interest : ★★★★☆ Good
Busy trail : Yes

The island is magnificent, but it is impossible to find the path on the left (point no. 4).
In the "Nearby" section at the end, the Gallic village should be removed as it has been closed due to arson attacks

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Philhame
Philhame

Overall rating : 5 / 5

Date of walk : Sep 12, 2024
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★★★ Very good
Route interest : ★★★★★ Very good
Busy trail : Yes

Ile Grande is well worth a visit, with beautiful sea views and an excellent crêperie

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Yvon Rouzault
Yvon Rouzault

Overall rating : 4.3 / 5

Date of walk : Oct 29, 2023
Reliability of the description : ★★★★☆ Good
Clarity of route map : ★★★★☆ Good
Route interest : ★★★★★ Very good
Busy trail : No

very well described

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GCous
GCous

Overall rating : 4.7 / 5

Date of walk : Jul 24, 2023
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★★★ Very good
Route interest : ★★★★☆ Good
Busy trail : No

A beautiful route, we extended it on the larger island to visit the reserve house, keeping a return trip to see the covered walkway (from point 4 to point 6 of the route)
It is also possible to go around the entire island
A bit of a drive on the way back

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jean-louis
jean-louis

Overall rating : 4.3 / 5

Date of walk : Sep 14, 2022
Reliability of the description : ★★★★☆ Good
Clarity of route map : ★★★★☆ Good
Route interest : ★★★★★ Very good
Busy trail : No

beautiful hike with beautiful scenery

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MORBU
MORBU

Overall rating : 4.3 / 5

Date of walk : Aug 01, 2021
Reliability of the description : ★★★★☆ Good
Clarity of route map : ★★★★☆ Good
Route interest : ★★★★★ Very good
Busy trail : Yes

Easy hike, superb views, circuit with very varied landscapes. The weather was very sunny, I recommend the delicious pancakes made in a small caravan set up on the circuit at the sailing school, very friendly saleswoman.
I couldn't find the path leading up to the viewpoint at point 4. The road section is unpleasant, with too much traffic.

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massouille 06
massouille 06

Overall rating : 4.7 / 5

Date of walk : Jul 12, 2020
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★★★ Very good
Route interest : ★★★★☆ Good
Busy trail : No

the hike is easy. We were lucky enough to set off at low tide and be able to walk along the shore. Otherwise, the access road is unpleasant because it is very busy.

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saintféliçien
saintféliçien

Overall rating : 4.3 / 5

Date of walk : Aug 21, 2019
Reliability of the description : ★★★★☆ Good
Clarity of route map : ★★★★☆ Good
Route interest : ★★★★★ Very good

Beautiful hike, mainly around the large island in the western part with superb views of the surrounding islands. The weather was magnificent.

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Sterenn9
Sterenn9

Overall rating : 4.7 / 5

Date of walk : Aug 07, 2018
Reliability of the description : ★★★★☆ Good
Clarity of route map : ★★★★★ Very good
Route interest : ★★★★★ Very good

Good sense of time spent.
Very good hike. We walked around the island; allow 45 minutes to an hour, but it's worth it to walk through the slightly marshy area (especially at high tide)

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Annie12400
Annie12400

Not used

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mariegiraud
mariegiraud

indeed, the end of the circuit is less obvious to find and, given the rather long stretch through the marshes, we cut the circuit short from the village, turning left onto a street that descends to reach the starting point more quickly.

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Willy CARIOU
Willy CARIOU

Overall rating : 4.3 / 5

Date of walk : Nov 12, 2017
Reliability of the description : ★★★★☆ Good
Clarity of route map : ★★★★☆ Good
Route interest : ★★★★★ Very good

superb hike; varied landscapes. Thank you

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Willy CARIOU
Willy CARIOU

Overall rating : 4 / 5

Date of walk : Oct 16, 2017
Reliability of the description : ★★★★☆ Good
Clarity of route map : ★★★★☆ Good
Route interest : ★★★★☆ Good

This is a first attempt. I am preparing a hike for a group
Your document has made this much easier for me.
Thank you.

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gazok54
gazok54 ★

Thank you, mariegiraud
Your comment seems to focus more on the appeal of the circuit rather than the reliability of the description. Unless you encountered some navigation issues.

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mariegiraud
mariegiraud

Overall rating : 4 / 5

Date of walk : Sep 10, 2017
Reliability of the description : ★★★☆☆ Average
Clarity of route map : ★★★★☆ Good
Route interest : ★★★★★ Very good

the last part is a bit disappointing, too many marshes, but the rest is perfect, with magnificent landscapes

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