The Marly Pumping Station and the Château de Monte-Cristo

Starting from Bougival station, a walk towards the Seine takes in some of the region’s most remarkable heritage sites: the remains of the Marly Pumping Station and the Château de Monte-Cristo.

Details

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Creation:
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  • Walking
    Activity: Walking
  • ↔
    Distance: 8.21 mi
  • ◔
    Average duration: 4h 25 
  • ▲
    Difficulty: Moderate

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 758 ft
  • ↘
    Descent: - 735 ft

  • ▲
    Highest point: 548 ft
  • ▼
    Lowest point: 69 ft
  • ⚐ Country: France
  • ⚐ City: Bougival (78380)
  • ⚑
    Start/End: N 48.853975° / E 2.132069°
  • ❏
    IGN map(s): Ref. 2214ET
  • Hour-by-hour weather

Photos

Description of the walk

Start at Bougival station (La Celle-Saint-Cloud) on the Transilien L line (Paris-Saint-Lazare sector).

(S/E) On leaving the station, cross the car park and at the roundabout take thesecond road on the left (Mail du Bois Brûlé); after 50 metres, enter the Bois de Louveciennes via the path on the right and then follow the fitness trail to the Skatepark de l’Étang sec.

(1) Turn right onto the small road called Chemin de l’Étang, leave the forest and follow the road to the entrance of the Parc des Trois Grilles.

(2) Cross the park diagonally and continue along Rue de la Red Cross until you reach a T-junction. Turn left onto Rue des Voisins. Turn right onto Rue Traversière, then left onto Rue de la Princesse, and you will reach the junction with Chemin de la Machine.

(3) Turn right onto it, follow it, then veer right to reach the entrance to the Parc des Granges du Barry.

(4) Turn right into the park. At the Comtesse du Barry’s music pavilion, the path descends steeply, near the aqueduct that rises from the Seine above the Machine de Marly.
Reach Quai Rennequin-Sualem, turn left onto it and arrive near the Pavillon Charles X, the last remaining vestige of the famous Machine de Marly.

(5) Turn left to reach the pedestrian crossing, using caution to cross the busy Quai de Conti. Cross the Pont Abbé Pierre and step onto the Île de la Loge just downstream of the Bougival Locks.

(6) Follow the single road downstream. At the sports grounds after the Emmaüs premises, take the footbridge to leave the island.

(7) Cross the Port Marly footbridge and follow Chemin des Hérons to the right until you reach the roundabout. Take Rue Jean Jaurès opposite, pass under Avenue Simon Vouet and cross Route de Versailles to reach Chemin du Haut des Ormes, which leads to the Centre Hospitalier de l’Europe. Cross the centre to reach the entrance to the Château de Monte-Cristo.

(8) Continue along Chemin des Montferrands, which joins the D7; leave it after 50 metres to reach the Grandes Terres estate. Cross it via a path that climbs up to the school complex. Follow Allée du Mississippi to the right and reach Parc Jean Witold.

(9) Turn left onto Allée des Épines, then Allée des Vignes, and join Rue de l’Abreuvoir at the junction with Route de Versailles. Continue down Rue de l’Abreuvoir. You will arrive at the Abreuvoir de Marly.

(10) Pass it on your left and head back up along the D386. Cross the road with great care at the entrance to Parc de Marly.

(11) Walk up through the Parc du Domaine Royal de Marly to the gate near the museum. On the other side of the roundabout, enter the Square de la Pelouse. After crossing Rue du Maréchal Joffre at the park exit, continue along Chemin de la Chasse du Roi and follow a path leading back to the skatepark in Parc de l’Étang sec.

(1) Return to the station via the reverse route of the outward journey (S/E).

Waypoints

  1. S/E : mi 0 - alt. 381 ft
  2. 1 : mi 1.03 - alt. 430 ft - Skatepark in the Parc de l’Étang Sec
  3. 2 : mi 1.17 - alt. 413 ft - Parc des Trois Grilles
  4. 3 : mi 1.77 - alt. 394 ft - Chemin de la Machine
  5. 4 : mi 2.17 - alt. 295 ft - The Comtesse du Barry’s Music Pavilion
  6. 5 : mi 2.42 - alt. 85 ft - Marly Pumping Station
  7. 6 : mi 2.62 - alt. 85 ft - Ile de la Loge - Seine (river)
  8. 7 : mi 3.61 - alt. 72 ft - Port-Marly footbridge
  9. 8 : mi 4.35 - alt. 217 ft - Monte-Cristo Castle (Le Port-Marly)
  10. 9 : mi 5.24 - alt. 325 ft - Jean Witold Park
  11. 10 : mi 6.01 - alt. 318 ft - Marly Drinking Trough
  12. 11 : mi 6.29 - alt. 417 ft - Royal Estate of Marly
  13. S/E : mi 8.21 - alt. 381 ft

Notes

There are several restaurants along the route at Port-Marly.

Worth a visit

At (3), there is a beautiful view of the valley.

(5) Regarding the Marly Pumping Station, information panels recount the history of this facility, which is closely linked to that of the Palace of Versailles

(8) The Château de Monte-Cristo, its museum dedicated to Alexandre Dumas and its small park are well worth a visit, which fits in with the route as it passes by the château’s entrance.

Reviews and comments

4.2 / 5
Based on 7 reviews

Reliability of the description
4.3 / 5
Ease of following the route
4.1 / 5
Route interest
4.3 / 5
User 26753618

Overall rating : 4.7 / 5

Date of your route : Feb 22, 2026
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

A short hike to enjoy discovering the heritage of the Île-de-France region. Not particularly difficult, except for the cobbled descent to the Marly machine platform, which others have already mentioned as being particularly dangerous in wet weather.

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evelou
evelou

Overall rating : 5 / 5

Date of your route : Oct 27, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

we completed the first part of the route to Monte Cristo Castle
we had a little difficulty on the steep descent to the Seine, as the wet cobblestones were particularly slippery

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Beauchamp
Beauchamp

Overall rating : 4.3 / 5

Date of your route : May 01, 2025
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

Hello,
We are very pleased with this route and discovering the Marly machine.
The route from the start is not easy, but luckily we had GPS.
Not to be attempted in wet weather, as the cobbled descent to the Seine is dangerous.
A few minor details about the route:
At point 9, do not continue down Rue de l'Abreuvoir, but turn right and go up Rue de l'Abreuvoir.
At point 10, halfway along, turn right into Marly Park through the small gate and go up to the left to come out through the main entrance.
At point 11, you will not find the "Square de la Pelouse" but the Pierre Lazareff Park.
Best regards

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Jean-PaulL
Jean-PaulL

Overall rating : 4 / 5

Date of your route : Nov 25, 2024
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

I always have difficulty finding the suggested routes.
For example, for this one,
At the moment, when I find one I like, I write down the number, otherwise it's very difficult to find again.
Why don't you offer a map with the option of finding hikes with starting points?

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yoyo78visiorando
yoyo78visiorando

Overall rating : 4 / 5

Date of your route : Apr 27, 2024
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

An interesting, very urban route with some greenery, where we enjoyed learning about history and geography! Beautiful view of the Seine and Paris. Few real remains of the ancient machinery... To be completed by the museum next time! The descent to the Seine was very slippery (cobblestones) with a ramp that was interrupted in places during this rainy spring of 2024... The return trip was a bit long and uninteresting along the road to the castle. Perhaps it would be better to plan this hike early on a Sunday morning (or public holiday) to avoid the impact of traffic? Overall, we are very happy with this hike, thanks to those who described it!

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Chrisauber
Chrisauber

Overall rating : 4.7 / 5

Date of your route : May 27, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

A very beautiful route, even if there are a few urbanised sections. Also very interesting from a cultural point of view.

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ealet
ealet

Overall rating : 3 / 5

Date of your route : Apr 05, 2024
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★☆☆ Average
Very busy route : No

Route requiring additional information (particularly to find points 1 and 8)
It is best to avoid days following heavy rain, as the forest paths are very muddy (before 1).
After Monte-Cristo Castle, the crossing of Marly-le-Roi between points 8 and 10 is tedious and uninteresting.
Thanks to the author for sharing this.

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