Panoramic views of the nature reserve from Hillion

A walk around the Hillion peninsula along the coastal path: a breath of fresh air in the heart of Brittany’s largest National Nature Reserve! 8.9 km of exploring an unspoilt coastal landscape, teeming with exceptional flora and fauna. With good walking shoes and a pair of binoculars, you’ll have a front-row seat for nature’s fabulous spectacle! To round off your experience, a visit to the Maison de la Baie will enrich your walk!

Avoid this walk from May to September! See practical information

Details

66848375
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  • Walking
    Activity: Walking
  • ↔
    Distance: 8.85 km
  • ◔
    Average duration: 2h 45 
  • ▲
    Difficulty: Easy

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 70 m
  • ↘
    Descent: - 71 m

  • ▲
    Highest point: 40 m
  • ▼
    Lowest point: 6 m
  • ⚐ Country: France
  • ⚐ City: Hillion (22120)
  • ⚑
    Start/End: N 48.514206° / W 2.66761°
  • ❏
    IGN map(s): Ref. 0916ET, 0916OT
  • Hour-by-hour weather

Photos

Description of the walk

Park in the car park in front of the Espace Platane.

Yellow-marked PR

(S/E) Head towards Rue Olliver Provost then take the street on your right (Rue de la Birlange). Go round the church on the left, cross Place de l’Église and arrive at Rue de la Porte Roy.

(1) Turn left onto the street and you will reach a roundabout.

(2) Continue straight ahead onto Rue de Fontreven (a dead-end street), and reach the cove at the junction with theGR®34.

GR®34marked in white and red

(3) Turn right, continue along the coastal path and pass the bird observatory.

(4) Pass the Maison de la Baie on your right, stay along the coast and arrive at Pointe du Grouin.

(5) Continue along the path to Pointe des Guettes.

(6) Stop at the orientation table and enjoy the exceptional scenery. Carry on and turn left onto the GR®34 path. Continue until you reach a beach.

(7) At the Lermot Beach car park, take a sharp left and continue along the path to a crossroad.

PR marked in yellow

(8) Turn right, walk past a house and take thefirst left.

(9) Turn left onto the path. Carry straight on, pass a farmhouse on your right and arrive at a fork.

(10) Turn right and head to the end of Impasse de la Pierre Blanche.

(11) Cross the road at the pedestrian crossing and take the small path opposite. Follow it to the junction at No. 6.

(12) Turn left (Route de Carberon), then continue along Rue Olivier Provost to reach the Espace Palante car park (S/E).

Waypoints

  1. S/E : km 0 - alt. 27 m - Espace Palante car park
  2. 1 : km 0.13 - alt. 29 m - Place de l'Eglise
  3. 2 : km 0.24 - alt. 28 m - Rue de la Porte Roy
  4. 3 : km 0.74 - alt. 8 m - Junction of Rue Fontreven and the GR34
  5. 4 : km 1.5 - alt. 16 m - Birdwatching centre
  6. 5 : km 3.58 - alt. 19 m - Pointe du Grouin
  7. 6 : km 4.84 - alt. 31 m - Pointe des Guettes
  8. 7 : km 5.77 - alt. 18 m - Lermot Beach
  9. 8 : km 6.81 - alt. 20 m - Road, exit from the walking trail
  10. 9 : km 7 - alt. 32 m - Route de Prébis
  11. 10 : km 7.61 - alt. 31 m - Prébis
  12. 11 : km 8.03 - alt. 31 m - Junction of Imp. de la Pierre Blanche and Rue de Lermot
  13. 12 : km 8.25 - alt. 29 m - Route de Carberon
  14. S/E : km 8.85 - alt. 27 m - Espace Palante car park

Notes

From May to September, thousands of tonnes of green algae invade the coastal flats of Brittany. As they rot, they release a highly toxic gas, making the air difficult to breathe. Best avoided at this time of year.

(S/E) Transport:

  • Line 20 (TUB) – “Hillion-Centre” stop – approx. 35 mins (does not run on Sundays)
  • Line 3 (Breizhgo) to "Hillion-Centre" stop – approx. 25 mins (does not run in summer or during school holidays)

Between (5) and (6) Accommodation at Camping Bellevue Mer***- Snack bar

(8) Turn left, 400 m on, mussels and chips at Cabane Mytilus from June to September.

The route is available free of charge from the Saint-Brieuc Bay Tourist Office.

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.

Reviews and comments

5 / 5
Based on 4 reviews

Reliability of the description
5 / 5
Ease of following the route
5 / 5
Route interest
5 / 5
gs
gs

Overall rating : 5 / 5

Date of your route : May 01, 2026
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

Beautiful views of the bay, an interesting coastal path.
No particular difficulty, quite busy, but it was 1 May.

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CASEON35
CASEON35

Overall rating : 5 / 5

Date of your route : Mar 06, 2026
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A lovely short hike with beautiful views of Saint-Brieuc Bay.
No particular difficulty.

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riquita
riquita

Overall rating : 5 / 5

Date of your route : Mar 02, 2026
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A pleasant, easy walk with beautiful views.

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Henri Lecler
Henri Lecler

Overall rating : 5 / 5

Date of your route : Sep 04, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A magnificent hike with few people despite the GR34. Breathtaking views, no major difficulties.

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KarLKoX
KarLKoX

Hike completed yesterday, no sun but low clouds.
No particular difficulties, the start of the hike allows you to enjoy the wildlife, which knows how to make itself heard.

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