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France

Ile-de-France

Rambouillet

Le Perray-En-Yvelines

Vaux de Cernay Abbey – Maincourt Washhouse loop from Le Perray-en-Yvelines

Routes

Running trails & routes

France

Ile-de-France

Rambouillet

Le Perray-En-Yvelines

Vaux de Cernay Abbey – Maincourt Washhouse loop from Le Perray-en-Yvelines

Hard

202

runners

Vaux de Cernay Abbey – Maincourt Washhouse loop from Le Perray-en-Yvelines

05:11

42.2km

750m

Running

Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

Last updated: June 17, 2026

Tips

Includes a segment that may be dangerous

A part of this route comprises technical, difficult, or hazardous terrain. Specialist equipment and prior experience may be required.

After 12.1 km for 44 m

Waypoints

Start point

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10.2 km

Vaux de Cernay Abbey

Highlight • Historical Site

Now closed to the public since it became a hotel restaurant

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12.1 km

View of Vaux‑de‑Cernay Abbey and the Vallée des Vaux Nature Reserve

Highlight • Viewpoint

An exceptional view of the Ru des Vaux valley

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20.6 km

Iron House

Highlight • Other

For more information on the iron house.
yveline.org/la-maison-de-fer

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22.4 km

Washhouse at the Fairies' Spring

Highlight • Historical Site

An exceptional laundry in more ways than one! Be sure to stop there and read the insert.

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23.9 km

Rock Formations Near Maincourt-sur-Yvette

Highlight • Natural Monument

On the path along the Yvette very pretty passage to do by mountain bike or on foot there are beautiful rocks and very beautiful trees

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24.5 km

Located in Saint-Forget, the Lavoir de la Source aux fées was known for its waters with therapeutic properties. Surrounded by majestic beech trees, this reconstructed fountain remains mysterious, far from …

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24.5 km

Maincourt Washhouse

Highlight • Monument

Nestled in the Chevreusee Valley, the Maincourt-sur-Yvette washhouse is a beautiful piece of rural heritage. This stone washhouse, carefully restored, is surrounded by greenery. A little gem to discover during a stroll in the region.

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35.1 km

Five Hundred Arpents Forest Road

Highlight • Forest

Straight and flat forest road

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42.2 km

End point

Way Types & Surfaces

Way Types

26.9 km

6.71 km

5.31 km

1.95 km

1.08 km

255 m

< 100 m

Surfaces

29.3 km

5.50 km

3.22 km

2.17 km

1.76 km

237 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (180 m)

Lowest point (90 m)

Weather

Thursday 18 June

35°C

17°C

21 %

Additional weather tips

Max wind speed: 13.0 km/h

to get more detailed weather forecasts along your route

Comments

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Vaux de Cernay Abbey – Maincourt Washhouse loop from Le Perray-en-Yvelines

Vaux de Cernay Abbey

View of Vaux‑de‑Cernay Abbey and the Vallée des Vaux Nature Reserve

Iron House

Washhouse at the Fairies' Spring

Rock Formations Near Maincourt-sur-Yvette

Lavoir de la Source aux fées

Maincourt Washhouse

Five Hundred Arpents Forest Road

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