The Saint-Gond Marshes

This hike allows you to explore a natural environment that is generally difficult to access, thanks to a well-maintained path between wet meadows and some beautiful viewpoints. A "nature" hike where the former Abbey of Saint-Gond adds a touch of heritage.

This walk is part of a multi-day hike: Paths of remembrance from the Great War

Details

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  • Walking
    Activity: Walking
  • ↔
    Distance: 8.71 km
  • ◔
    Average duration: 2h 35 
  • ▲
    Difficulty: Easy

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 38 m
  • ↘
    Descent: - 34 m

  • ▲
    Highest point: 174 m
  • ▼
    Lowest point: 138 m
  • ⚐ Country: France
  • ⚐ District: Oyes (51120)
  • ⚑
    Start/End: N 48.808684° / E 3.785367°
  • ❏
    IGN map(s): Ref. 2714E, 2714O
  • Hour-by-hour weather

Photos

Description of the walk

Park in the small car park opposite the town hall in Oyes. The village is located about 12 kilometres north-east of Sézanne and about 15 kilometres south-east of Montmirail.

The route is not marked, even on the short section that follows theGRP®® Thibaud de Champagne (lack of support). A few posts with a yellow sign saying "Route de Oyes", indicated in the description, show the direction from place to place.

(S/E) Facing the town hall, take the street on the left.

(1) At the crossroads, take the small road on the right (yellow sign) towards Villevenard. Walk along a pond on your left and then the old Abbey of Saint-Gond on your right (rural lodges). At the end of a grove on your right, look for a post with a yellow sign inviting you to turn right.

(2) Pass the signpost and continue straight ahead on the small road. At the T-junction, turn left onto a slightly larger road.

(3) Cross the Petit Morin and then a stream overgrown with vegetation. Stop after passing a copse (with a "private property" gate on the left) and enjoy the view of the vineyards to the north.

(4) Retrace your steps to the post with the yellow sign that you came across shortly after the old Abbey of Saint-Gond.

(2) Turn left onto a grassy but well-maintained path. Walk south-southwest for about 1 km, with wet meadows or birch woods on either side. After an information sign, continue in the same direction between two cultivated plots and reach the D44 road.

(5) Cross the road (take care) and follow it to the right for a few dozen metres. Then take the first path on the left: opposite, in the distance, is the national monument to the first victory of the Marne, which is impossible to miss (except perhaps in thick fog). The path bends to the right; continue west. When you reach a small road, make a first turn left then right to rejoin a path heading west. You will reach a pond on your right (post with yellow signs).

(6) Continue west and you will come to a pond, also on your right.

(7) Continue west and you will come to a crossroads where the path begins to climb (granite marker at the edge of a field opposite on the left).

(8) Then turn right (north) towards a wood. Ignore a path on the left and walk along the edge of the wood. Make an "S" turn to cross a stream and reach the D44 road. Cross the road (take care) and climb up opposite, walking along what must have been a limestone quarry in the past on your right.

(9) At the top of the hill (beautiful viewpoint), turn right (east) onto the grassy path. At a triple fork, take the grassy path on the far left and descend to a small road. Then turn right and follow the road to the entrance of the village. At the "Stop" sign, take Rue de Saint-Prix opposite and then pass Rue des Terres Blanches.

(1) Turn right onto Rue de la Mairie and you will soon reach the starting point (S/E).

Waypoints

  1. S/E : km 0 - alt. 141 m - Oyes - Town hall
  2. 1 : km 0.16 - alt. 140 m - Oyes - Rue de Saint-Prix
  3. 2 : km 1.23 - alt. 139 m - Saint-Gond - Start of the marsh trail
  4. 3 : km 1.75 - alt. 139 m - Bridge over the - Petit Morin (le)
  5. 4 : km 2.17 - alt. 140 m - Route de Villevenard - Cote 140
  6. 5 : km 4.61 - alt. 143 m - D44 road
  7. 6 : km 5.5 - alt. 144 m - Pond
  8. 7 : km 5.71 - alt. 143 m - Pond
  9. 8 : km 6.28 - alt. 154 m - Junction with the GRP
  10. 9 : km 7.43 - alt. 174 m - Butte de Montaubart
  11. S/E : km 8.71 - alt. 141 m - Oyes - Town hall

Notes

Good trainers are sufficient for this hike. After rain or morning dew, your feet may get wet on the grassy paths. In wet weather (not tested), the other paths may be muddy.

For most of the hike, the terrain is open: in very sunny or hot weather, take the necessary precautions, depending on your sensitivity.

This hike passes through protected natural sites: dogs must be kept on a leash.

Near the Oyes town hall, there is a sign with a map of the hike (except for the section between (2) and ), a memorial plaque relating to the battles of September 1914, and picnic tables.

The banks of the pond (7) are a pleasant place to stop for a break or a picnic. There is a small island with a disused hut that can be reached by a footbridge.
N.B.1. It looks like private property, but there are no signs to indicate this. In any case, please respect the site.
N.B.2. The footbridge seems flimsy: avoid walking on it in groups.

A 1:25,000 map is essential (at least the one accompanying this description).

Variants:
- The detour on the Villevenard road, between (2) and (4), is recommended in order to appreciate the extent of the marshes from the bridge over the Petit Morin and to enjoy a beautiful view of the vine-covered hills. If you wish to skip this detour, simply follow the yellow sign for "Route de Oyes" on the right at point (2). This will shorten the route by approximately 1 km.
- At the pond located at point (6), you can go directly to the village of Oyes: take the path on the right after the pond (yellow sign), cross the D44 road and continue straight ahead on the path to the car park opposite the town hall. This shortens the walk by about 2 km.

Hike completed by the author on 4 June 2015.

Worth a visit

The Saint-Gond Marshes cover around 20 kilometres and nearly 4,000 hectares. They are a fragile environment, rich in biodiversity, and are subject to protection and management measures, particularly under the aegis of the Champagne-Ardennes Natural Heritage Conservatory. They are difficult to access, either due to the nature of the environment or because they are located on private property.

On this hike, the best views of this unique environment can be found at the following points:
- On the bridge over the Petit Morin (3). Unfortunately, the vast Etangs de la Noquette ponds nearby are not accessible (private property).
- On the marsh trail between (2) and (5).
- From the Butte de Montaubart, where you can appreciate the extent of the marshes (to the north and east).

The Saint-Gond marshes were the scene of fierce fighting in September 1914, which took place in hellish conditions. Historians agree that the resistance of the 9th French Army, commanded by General Foch, at this central point of the Marne battlefront (which stretched from Verdun to the gates of Paris) was one of the keys to victory.

In Mondement, a few kilometres south-west of Oyes, stands the National Monument to the First Victory of the Marne. A sort of concrete megalith with a base of pink granite (hence its colour), some thirty metres high, its aesthetics are questionable... But from the hill on which it stands, there is a beautiful view (orientation table).

Reviews and comments

4.3 / 5
Based on 10 reviews

Reliability of the description
4.6 / 5
Ease of following the route
4.6 / 5
Route interest
3.8 / 5
christia51
christia51

Overall rating : 4 / 5

Date of your route : Sep 02, 2025
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

the route does not show the marshes of Saint Gond,
you must see the tree frog trail in Reuves, located 5 km from Oyes
this route through the marshes is educational and helps to preserve nature

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C. FASTOCHE
C. FASTOCHE

Overall rating : 4 / 5

Date of your route : Apr 09, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★☆☆ Average
Very busy route : No

Very easy hike, walking shoes recommended.
Clear and reliable explanations.

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virgule
virgule

I think interest depends on the season and weather conditions. At the end of summer, during a heatwave, I wouldn't go to places where there is no shade.

I did this route in June a few years ago, and there was a beautiful display of orchids in bloom. So I found the route interesting.

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VDumoulin
VDumoulin

Overall rating : 3.7 / 5

Date of your route : Aug 12, 2022
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★☆☆ Average
Very busy route : No

Avoid during the hottest hours of summer as most of the route is in direct sunlight.
Parts 1 to 4 are on a narrow road, which is not very busy, but personally I prefer to be surrounded by nature.
The return route (sections 2-4) is not particularly interesting, as the marshes are not visible.
I didn't see any animals during the entire hike, even though I was looking carefully, as I'm used to it from taking wildlife photos.
However, the hike does allow you to see the Mondement monument, which is very impressive and definitely worth a visit by car afterwards.
Sections 7 to 9 were of little interest. It is better to turn back at section 6 and follow the other yellow hiking sign, which cuts across and takes you directly back to the car park.

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denysferrier
denysferrier

Overall rating : 3.7 / 5

Date of your route : Jul 07, 2020
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★☆☆ Average
Very busy route : No

Don't make the round trip beyond the abbey just to see the champagne vineyards from a distance: it's not worth it. Park near the abbey (it's easy) and start the route just after (obviously, the journey, which is already short, will be even shorter...). A pretty path through the woods, spoiled by a sheep fence on the left. Then, beautiful views of the hills. Be careful! Don't go all the way to Oyes just to see the Saint Gond marshes because, despite the name of the hike, you won't see them on this route, even from a distance!

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Francis BUREAU
Francis BUREAU

Overall rating : 4.7 / 5

Date of your route : Jul 21, 2018
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good

An easy and pleasant walk through varied landscapes.
Parts 1 to 4 are on a narrow road with very little traffic (I only saw three cars during my walk).
At the end of section 9-1, I missed the left turn at the triple fork, went straight on and I think that was just as well (it avoids the small road that you come to at the stop sign).

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ffrantz
ffrantz
• Edited:

Overall rating : 4.7 / 5

Date of your route : Sep 03, 2017
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good

Very easy family hike. The round trip to Villevenard (2 - 4 - 2) is not very interesting when you have already travelled along the road to get to Oyes, especially as there is not much to see (too much vegetation to see any marshes).
However, the hike allowed us to see the Mondement monument from afar (which we didn't know about), so we drove back there afterwards. From there, you have a beautiful view.
Oye is a surprising place in the Marne region; it really feels like you're somewhere else.
The hike took us 1 hour and 40 minutes (there and back), and we are fairly good walkers.

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Romain 51
Romain 51

Overall rating : 5 / 5

Date of your route : May 26, 2017
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good

Great walk.
Duration: 1 hour 45 minutes for experienced walkers.
Very well explained, very pretty area and easy
Please note that the path is open with no shade, so it is best to avoid it during the hottest hours of the day in summer.

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Jeanne T.
Jeanne T.

Overall rating : 4.3 / 5

Date of your route : Apr 07, 2016
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good

A great hike, the map provided was really useful for us as we didn't have an IGN map. We saw lots of animals along the way (donkeys, goats, Highland cattle, deer, ducks, pheasants, etc.). The detour at the Villevenard road is interesting, especially at sunset, with its stunning scenery! It's a shame you have to walk along the road and retrace your steps on the way back.
We turned back at the pond (number 7) to return to Oyes, heading north at junction number 6, because the last part (from number 8 to 9) didn't seem as interesting to us (we liked the marshes best!) and because we had already stopped quite a few times along the way to admire the animals. But I highly recommend this walk for anyone who wants to discover this unique natural environment without any hassle. It's a short, simple and enjoyable walk! Thank you!

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Netra
Netra ★

Hello Virgule,

The notice regarding dogs, which are allowed but must be kept on a leash, is displayed on the large information board at the start of the hike, below the hike map.

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virgule
virgule

Hello,

I almost always walk with my dogs, and I haven't seen any signs prohibiting dogs on this route. However, dogs are completely prohibited in the Reuves marsh, even on a lead.

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Netra
Netra ★

Hello Antoine M4,

Thank you for your feedback on this hike.

One downside, however, is that dogs are not allowed on part of the trail, which we realised at the end of the hike... Perhaps it would be more appropriate to only ban dogs that are not on a leash, (...)

According to the information I have, and (from memory) according to the information sign at the start of the hike, "Dogs must be kept on a leash". It is therefore not a complete ban on dogs. I will add this clarification to the description.

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Antoine M4.
Antoine M4.

Overall rating : 4.7 / 5

Date of your route : Aug 29, 2015
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good

A very pleasant walk, fairly easy (done with our 5-year-old daughter who walked the whole way and our 2-year-old who walked a little and mainly rode on our shoulders in 2 hours and 49 minutes), fairly varied... The description leaves no room for doubt. No major problems with insects, which was a potential concern before starting the walk (even though it was the end of the season). The monument in the distance, the charming abbey along the way, a small hill at the end overlooking the whole area... it's a great walk for children or those who are reluctant to walk...
One downside, however, is that part of the route is off-limits to dogs, which we realised at the end of the walk... Perhaps it would be fairer to ban only dogs not on a leash. Although we understand the aim of preserving the natural environment, I don't think a dog on a leash with responsible owners leaves much more of a mark than a family without... But that's another matter... That said, it's a very pleasant walk that borders on hiking...

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virgule
virgule

It's a beautiful region. I recently discovered the Congy menhir and the Reclus dolmen. It's just a few kilometres from the Saint Gond marshes.

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Netra
Netra ★

Thank you for your comments.
No, it's not Louisiana... there are no mangroves in these marshes. But there are flowers, yes, and beautiful wet meadow vegetation.

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