The northern edge of the Isle-Adam national forest

A varied hike: riverside paths, farmland, forest trails, with the added bonus of discovering a megalithic ruin. The rolling hills of the region offer beautiful views of the surrounding countryside.

Details

107730
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  • Walking
    Activity: Walking
  • ↔
    Distance: 20.89 km
  • ◔
    Average duration: 6h 10 
  • ▲
    Difficulty: Difficult

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 72 m
  • ↘
    Descent: - 72 m

  • ▲
    Highest point: 98 m
  • ▼
    Lowest point: 22 m
  • ⚐ Country: France
  • ⚐ District: L'Isle-Adam (95290)
  • ⚑
    Start/End: N 49.114016° / E 2.214109°
  • ❏
    IGN map(s): Ref. 2313OT
  • Hour-by-hour weather

Photos

Description of the walk

The hike starts at the car park at Plage de l'Isle-Adam (Val d'Oise), at 1 Avenue du Général de Gaulle.
You can get there by car or train; Parmain station is about 600 metres away.

PR® (yellow) markings

(S/E) Take Rue de la Capitainerie with the beach on your right.

(1) At the bridge, turn right and, just before the next bridge, take the towpath on the right. A little further on, you will pass the lock.

(2). Continue along the banks of the Oise for about 4 km.

(3) At the fork, two hundred metres after passing under the A16 motorway and the D301, leave the banks of the Oise by turning right onto the path that climbs and passes under a bridge. Cross the D922 and continue along the path that curves to the left and runs alongside the village of Mours to the Vieux-Moulin farm, where you turn right.

(4) The path passes through fields, turns left at the edge of a wood, winds through the wood and, at the exit, turns right to arrive at the edge of a stream where you turn right.

(5) Continue for a good kilometre and you will come to a crossroads at the entrance to the Golf de l'Isle-Adam.

(6). Take the road on the left. At Prérolles, in front of a calvary, turn right onto the path that climbs up to the plateau, skirting around the very large golf course. At the crossroads near a few houses and the Presles cemetery.

(7) Go straight ahead, continuing along the golf course.

(8) At the crossroads, continue straight ahead.

(9) At the end of the golf course, at the crossroads at the edge of the woods, turn right and after 200 metres you will arrive at the Pierre Plate covered walkway.

(10) After exploring the site, retrace your steps to the previous crossroads.

(9) Normally, there is a rural path allowing you to cross the field in front of you, but it has recently been ploughed and sown with wheat. If the path is still inaccessible during your hike, we advise you to continue back to the previous crossroads.

(8) Turn right, then right again 200 metres further on to reach the end of the path you would have followed if it had not been cultivated. The distance indicated on this sheet takes this detour into account (approximately 750 metres).

(11) Take the wide agricultural track on the left, which leads to a tarmac road that joins the D64E on the right.

cross the N1 bridge and continue on the D64, which is marked PR®. Watch out for traffic and walk on the grass verge until you reach the N184 bridge.

(13) At the first crossroads after crossing the bridge over the dual carriageway, take the second forest track on the right. Walk along this wide track (Route des Louveteaux) for about 2 km, ignoring several paths on the right and left.

(14) When you reach a riding centre, take the path that descends to your right.
This path winds its way to Rue Saint-Martin. At the roundabout, go straight ahead into Rue Pierre Morard, which bends sharply to the left. At the T-junction, turn right into Rue de Nogent, which leads to Avenue Michel Poniatowski (D922) where the Pavillon Chinois is located.

(15). Turn right and continue to the large roundabout.

No signposts

(6) Cross the roundabout on the left to take Avenue des Carrières de Cassan, continue until you reach Rue de la Porte du Bois, which crosses it diagonally on the left, and take it. Cross the crossroads and follow the street along the waterfront. At the bend, continue straight ahead along the path that separates two ponds. At the end, turn left and then, 200 metres further on, turn left again to go around the pond. When you reach the road (Avenue du Chemin Vert), turn left and continue until you reach a crossroads with traffic lights.

(17) Cross the street to the right and take the path opposite that leads to the school. Turn right into the landscaped alleyway that takes you to the park entrance on Rue Abbé Breuil. Cross the park and head to the car park on the other side (S/E).

Waypoints

  1. S/E : km 0 - alt. 26 m - Car park at Isle-Adam beach
  2. 1 : km 0.13 - alt. 28 m - At the bridge, turn right
  3. 2 : km 0.86 - alt. 26 m - Lock - Oise (l')
  4. 3 : km 4.76 - alt. 27 m - Leave the banks of the Oise
  5. 4 : km 5.79 - alt. 39 m - Old Mill Farm
  6. 5 : km 6.98 - alt. 35 m - Stream
  7. 6 : km 8.14 - alt. 31 m - Entrance to the Isle-Adam Golf Course
  8. 7 : km 9.77 - alt. 87 m - Presles Cemetery
  9. 8 : km 10.03 - alt. 84 m - At the crossroads, go straight ahead
  10. 9 : km 10.65 - alt. 85 m - Turn right towards Pierre Plate
  11. 10 : km 10.95 - alt. 84 m - Allée couverte de la Pierre Plate
  12. 11 : km 12.47 - alt. 88 m - End of the detour
  13. 12 : km 13.5 - alt. 97 m - N1 bridge
  14. 13 : km 14.59 - alt. 95 m - Start of the forest road
  15. 14 : km 16.76 - alt. 81 m - Equestrian centre
  16. 15 : km 18.01 - alt. 30 m - Chinese Pavilion
  17. 16 : km 18.2 - alt. 31 m - Large roundabout
  18. 17 : km 19.78 - alt. 29 m - Traffic lights
  19. S/E : km 20.89 - alt. 26 m - Car park at Isle-Adam beach

Notes

Usual equipment: hiking boots and drinks.

Important:
The route is almost entirely signposted. There have been some recent changes, so please refer to the description if there are any discrepancies with the map, which has not yet been updated.

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

4.5 / 5
Based on 25 reviews

Reliability of the description
4.6 / 5
Ease of following the route
4.6 / 5
Route interest
4.1 / 5
Taleb
Taleb

Overall rating : 4.3 / 5

Date of your route : Mar 30, 2026
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

Hello,
Along the route, fallen trees force you to take a detour before rejoining the path a little further on.
At the end of a path, the GR trail is about 500 m further down, which leaves us unsure which route to follow.

Kind regards,
A. Taleb

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User 3412239
• Edited:

Overall rating : 4.3 / 5

Date of your route : Oct 13, 2025
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

Good route, flat, very little elevation gain.
However, between points 12 and 13, the route follows a busy country road, which is not very pleasant
Towards the end, in L'Isle Adam, we left the route after the ponds to return to the banks of the Oise, which are much nicer than the streets of the town.
Trip taken on 13 October 2025.
Enjoy your walk.

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Claude L2.
Claude L2.

Overall rating : 4.5 / 5

Date of your route : Dec 20, 2024
Reliability of the description : Not used / Not applicable
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

A beautiful and varied walk. My favourite parts: the banks of the Oise and the covered walkway at Pierre Plate.
Only the section between 12 and 13 (passages N1 and N184) is not very pleasant, but it is relatively short.
The route could be improved after point 14 by replacing an urban section with green spaces:
about 500m after point 14, when the path runs alongside the "Côte Sucrée", follow the tarmac road on the right, then after 100m, at the bend, take a grassy path on the left. Pick up a path that leads to the tennis courts. Pass between the two courts, turn left, then go down the lawn and pass to the left of the pond. Then follow the paths and alleys that lead to the north of the Pavillon Chinois.
At point 16, don't forget to visit the ice house marked on the IGN map, which is very well preserved!

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daniel92800
daniel92800

Overall rating : 4.7 / 5

Date of your route : Sep 22, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

Hike completed on Saturday, 21 September; opinion identical to Maxime's previous review.

Point to note: before point 12, the road climbs and then turns left to cross the bridge over the motorway: stay well to the right behind the safety barrier.

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maximelevrain
maximelevrain
• Edited:

Overall rating : 5 / 5

Date of your route : Sep 13, 2024
Reliability of the description : Not used / Not applicable
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

Hike completed using only the app, without paying too much attention to the description.

A lovely little walk with varied scenery (banks of the Oise, fields, woods and a long, pleasant circuit in L'Isle-Adam).

One small downside: between 11am and 1pm, the traffic noise can be annoying.

In short, a good day's walk: definitely worth doing!

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phd.gauthier
phd.gauthier

Overall rating : 4 / 5

Date of your route : Apr 08, 2024
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★☆☆ Average
Very busy route : No

A beautiful hike despite a few muddy sections and a stretch along the roadside, which was compensated for by walking through a woodland carpeted with flowering hyacinths.

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MAGOO95
MAGOO95

Overall rating : 4.3 / 5

Date of your route : Aug 29, 2021
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

A good route for a mixed forest/town hike with points of interest such as the flat stone (you have to go a little further than the trail to find it in a plot surrounded by a fence), the Chinese pavilion, and the new marina at L'Isle Adam.
The downside is the section that crosses over the N1 and runs alongside the N64, where you have to walk along this road without any protection and with traffic and noise.

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LEMONNIER Serge
LEMONNIER Serge

Overall rating : 4.3 / 5

Date of your route : May 30, 2021
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

Hello
After passing through the lock (marker 2 on the map), it is not possible to continue straight ahead along the banks of the Oise due to construction work and the entrance to the marina.
Simply go around the harbour to return to the banks of the Oise.

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bruno serret
bruno serret

Overall rating : 4.3 / 5

Date of your route : Apr 25, 2021
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

A lovely walk, cool in the morning but very pleasant in the afternoon. At the start, after a few hundred metres, we had to leave the banks of the Oise and go around the marina, which is under construction. After that, it was a beautiful route through Mours, Presles and along the golf course at L'Isle Adam, which was very pleasant. The section along the D64e and D64 is much less interesting, but then you enter the forest. Just be careful not to take the cycle path; leave it on your left after the bridge. The description is fairly accurate, and the route is not particularly difficult.

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MTRP1974
MTRP1974

Overall rating : 5 / 5

Date of your route : Mar 06, 2021
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A very beautiful hike on this sunny day with a perfect blue sky.
I did the hike in reverse so that I could be at the banks of the Oise in the afternoon.
I started the hike at 8:45 a.m. The Isle Adam ponds were magnificent with a little mist, the morning sun, plants and animals.
Avoid Saturdays for less traffic on the main road. This part is not very pleasant, and it's a shame that the old main road shown on the map is not accessible to pedestrians.
Thank you for the route.

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Moussard
Moussard

Overall rating : 4 / 5

Date of your route : Feb 20, 2021
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★☆☆ Average
Very busy route : No

Not enough forest. Dangerous and uninteresting section over 500 metres.

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giron95
giron95

Overall rating : 3.7 / 5

Date of your route : Feb 22, 2021
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★☆☆ Average
Very busy route : No

Walking along the roadside and in the middle of an interchange is dangerous and unpleasant.
Apart from that, the route is varied and interesting.

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Françoise G9.
Françoise G9.

Overall rating : 3 / 5

Date of your route : Nov 23, 2020
Reliability of the description : ★★★★☆ Good
Ease of following the route : Not used / Not applicable
Route interest : ★★☆☆☆ Disappointing
Very busy route : No

disappointed...detour right at the start of the hike, but no big deal...on the other hand, lots of rubbish dumps along the route, some fairly dangerous and unpleasant sections (roadside, etc.)

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Sylvain49
Sylvain49

Overall rating : 4 / 5

Date of your route : Jul 19, 2020
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : Yes

Varied walks. We particularly enjoyed the walks along the banks of the Oise and rediscovering the landscapes dear to Van Gogh. A little culture too with the megalithic site.

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Marin3
Marin3

Overall rating : 4.7 / 5

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

Very good hike, clear and precise explanations. I downloaded the map to put it on my Garmin hiking GPS.
Everything went well. Be careful along the D64, though! It's quite dangerous, so you really need to stay on the side of the road because cars are travelling at 70-80 km/h right next to you!
A very beautiful hike along the Oise river, on the plain, with fields of sunflowers. You see several types of landscapes. Really nice!

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