The Olonnes marsh

This route winds between the forest and the Olonnes marshes, where many species of birds come to find food and peace.

Details

93522
Creation:
Last update:
Last review:
  • Walking
    Activity: Walking
  • ↔
    Distance: 5.64 km
  • ◔
    Average duration: 1h 40 
  • ▲
    Difficulty: Easy

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 5 m
  • ↘
    Descent: - 5 m

  • ▲
    Highest point: 6 m
  • ▼
    Lowest point: 1 m

Photos

Description of the walk

Parking is available opposite the La Sainte-Emilienne restaurant on the other side of the D80.

(S/E) From the car park, head south along the paved Avocettes road.
Opposite the D80, turn left onto a dirt track parallel to the road. At the next intersection, turn left away from the D80. Pass a sign saying "Vous êtes à 12 km des Sables d'Olonne" (You are 12 km from Les Sables d'Olonne).

Ignore the first path on the left (it is closed by a wooden barrier) and turn left onto the next one.

(1) This path is flanked on either side of its entrance by two wooden signs saying "La Vendée à vélo". From here, follow theGR®8(red and white markings).

(2) When you see two buildings side by side (the larger one with dilapidated windows has a tall chimney), turn left, leaving them on your right. At the next intersection, turn right, following the red and whiteGR®8markings.

(3) At the next crossroads (pile of old railway sleepers at the corner), turn left. Continue along the barely marked path.

(4) Cross the footbridge and continue straight ahead on the path. A little further on, turn left and pass in front of a bench (5).

(5) At the intersection, leave theGR®8dirt track (ignore the red and whiteGR® markings from this point onwards) and follow the orange-yellow gravel path to the left. Stay on this main path (the dirt tracks crossing it are private and access is prohibited) until you reach a bench.

(6) At this point, the path becomes a paved cycle path, which you should follow to return to the starting point (S/E).

Waypoints

  1. S/E : km 0 - alt. 6 m - Parking opposite the La Sainte-Emilienne restaurant
  2. 1 : km 2 - alt. 2 m - Signs on either side of the path entrance
  3. 2 : km 2.52 - alt. 3 m - there are two buildings, one of which has a tall chimney
  4. 3 : km 2.88 - alt. 2 m - Pile of railway sleepers
  5. 4 : km 3.36 - alt. 3 m - Wooden footbridge
  6. 5 : km 4.08 - alt. 2 m - Bench
  7. 6 : km 5.04 - alt. 3 m - Bench and end of the path in orange-yellow gravel
  8. S/E : km 5.64 - alt. 6 m - Parking opposite the La Sainte-Emilienne restaurant

Notes

From November to April, the marshes are waterlogged due to heavy rainfall. A third of this route (part ofthe GR®8) is on dirt tracks that can be very muddy after rain, to the point that some sections require boots. It is advisable to do this route between May and October.

Follow the red and white markings ofthe GR®8between the waypoints (1) and (5).

The first kilometre is through forest and on tarmac (a road that is not used by motor vehicles except by the few residents).

Fishing is prohibited in the marsh.

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

4.5 / 5
Based on 23 reviews

Reliability of the description
4.6 / 5
Ease of following the route
4.6 / 5
Route interest
4.3 / 5
Rando_58
Rando_58

Overall rating : 4.7 / 5

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

The first part follows the cycle path, which can be quite busy with bikes depending on the season.
The rest of the walk takes you into the heart of the marshes, where you can reconnect with nature in complete tranquillity. A very interesting route.

Machine-translated

Nadinette
Nadinette

Overall rating : 4 / 5

Date of your route : Jun 30, 2025
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

A pleasant walk through the marshes
We saw quite a few birds
The part in the forest is more refreshing but less interesting and a bit long due to the lack of things to see, but that's just our opinion.

Machine-translated

Mathilde1789
Mathilde1789

Overall rating : 5 / 5

Date of your route : May 08, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

Slightly busy at the end of the day, the marshes are magnificent. The hike is family-friendly and very enjoyable, but watch out for cyclists

Machine-translated

Angel_et_cie
Angel_et_cie

Overall rating : 5 / 5

Date of your route : Aug 12, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

A fairly busy route... lots of cyclists honking their horns despite the fact that we were riding single file on the side of the road. Otherwise, the ride was very pleasant with some lovely views and interesting flora and fauna.

Machine-translated

Papylain
Papylain

Overall rating : 5 / 5

Date of your route : Aug 19, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

Many bikes at the start of the route.

Machine-translated

GregOne
GregOne

Overall rating : 5 / 5

Date of your route : Aug 15, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

A very beautiful hike with the family and children. We loved the natural landscapes of the Olonnes marshes, with lots of wild plants and flowers, birds and fish. A real change of scenery.
Please note: there are lots of bikes, as part of the route is a cycle path that gets quite busy in August.

Machine-translated

Delbadibul
Delbadibul

Overall rating : 5 / 5

Date of your route : May 08, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

A magnificent walk with stunning contrasts, yellow mustard seeds and lush greenery at this time of year. Lots of wildlife, a real treat. This is definitely the best time of year to do it because it was already warm and not too busy, so I wouldn't recommend doing it in summer or when it's very hot. There are a large number of cycle paths, so it is very busy. Be careful, as there is no distinction between pedestrians and cyclists.

Machine-translated

mayenn53
mayenn53

Overall rating : 4.7 / 5

Date of your route : Mar 21, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

Pleasant hike, short paved section of about 2 km in total. Flat terrain, so parish specific to Brittany.

Machine-translated

Franky de Breti
Franky de Breti

Overall rating : 4 / 5

Date of your route : Apr 17, 2023
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

Couldn't find the start of the route straight after walking along the D80 (never saw the sign for Les Sables?)
Very pleasant route through the marshes, saw lots of birds, including quite a few herons.
Once on the route, it was easy to follow.
So I recommend this family walk.

Machine-translated

yt3
yt3

Overall rating : 4 / 5

Date of your route : Mar 28, 2022
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

Good, calm, one signpost missing at the small metal bridge, a few birds in the early afternoon, flat terrain, accessible to mountain bikes and even electric scooters (seen today). You can see all the surrounding villages.
Today's family hike is recommended either from Sainte Émilienne or La Salaire

PS: In June, we will do the Fleur de Sel hike because local archaeologists are going to remove (near the new salt marsh that has been restored and filled in since June 2021) an ancient boat (approximately 1,000 years old according to archaeologists in June 2021) to have it treated for conservation in the open air (to prevent rot) and then display it in a "local museum" in 2023. Work to follow.

Machine-translated

pajohnny
pajohnny

Overall rating : 5 / 5

Date of your route : Nov 18, 2021
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

Superb route outside of holiday periods, otherwise it is too crowded to enjoy nature

Machine-translated

sylvalien
sylvalien

Overall rating : 4 / 5

Date of your route : Oct 01, 2018
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good

A beautiful, easy hike through marshland. Very pleasant.

Machine-translated

Marc1961
Marc1961

Overall rating : 4 / 5

Date of your route : May 05, 2018
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★☆☆ Average

A pleasant and easy walk. It's completely flat.
There are birds in flight but few on the ground. Probably not the right time of day or tide.
The wooden footbridge mentioned in the description has been replaced by a metal footbridge.

Machine-translated

celte22
celte22

Overall rating : 4.7 / 5

Date of your route : Oct 23, 2017
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good

A very pleasant walk, as long as you avoid the cycle path, where you're not particularly welcome among the two-wheeled traffic! Otherwise, it's peaceful, with wildlife and surroundings where you feel completely at ease. There are no hills, so it's wonderful. I recommend this route.

Machine-translated

celte22
celte22

Overall rating : 4.7 / 5

Date of your route : Oct 23, 2017
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good

A very pleasant walk, as long as you stay off the cycle path, where you're not particularly welcome by cyclists! Otherwise, it's peaceful, with wildlife and surroundings where you feel completely at ease. There are no hills, so it's wonderful. I recommend this route.

Machine-translated

Other walks in the area

For more walks, use our search engine .

The GPS track and description are the property of this route's author. Please do not copy them without permission.