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Medieval town of Dourdan – Grillon Trail loop from Sermaise

Routes

Mountain biking trails

Medieval town of Dourdan – Grillon Trail loop from Sermaise

Moderate

5.0

(1)

riders

Medieval town of Dourdan – Grillon Trail loop from Sermaise

02:47

35.1km

310m

Mountain biking

Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary. The starting point of the route is accessible with public transport.

Last updated: May 7, 2026

Tips

Includes a segment in which cycling is not permitted

After 0 m for 240 m

Waypoints

Start point

Train Station

Get Directions

2.15 km

Fortified Farm of Châteaupers

Highlight • Historical Site

From the town hall of Roinville, going up to the plateau via rue des Vignes, you should not miss the fortified farm of Châteaupers, a former fortified stronghold built in the 14th century, and its square tower. A dungeon which served as a watchtower in the Middle Ages: the watchman sounded his horn when he saw looters coming from the Orge valley, and the inhabitants ran to take refuge inside. The moat, partially filled in, and the drawbridge have disappeared, but Châteaupers has retained its original shape (a quadrilateral) and its medieval spirit. In the 16th century, the farm was brought as a dowry to the lord of Marais, by the daughter of the castellans of Villeconin. A tapestry, kept at the Cluny Museum, and a pencil portrait kept at the Cabinet des Estampes represent her. It is under the name of Lady of Chateaupers that she is designated in the collection of pencil portraits of the National Library. We can now discover the farm from the inside: the stately home, restored according to the rules of the art, has recently been transformed into a rural gîte. The opportunity to follow in the footsteps of Rachel de Cochefilet, the most illustrious mistress of these places, since she was the wife of a certain Sully, minister of Henri IV.

Translated by Google •

Tip by

6.02 km

Medieval town of Dourdan

Highlight • Other

This square is really nice with the church, the cobbled square and the hall without forgetting the castle

Translated by Google •

Tip by

8.72 km

Les Fontaines Bouillantes

Highlight • Lake

the ponds are magnificent filled with water lilies and feathered critters of all kinds.

Translated by Google •

Tip by

9.86 km

Forêt de Dourdan

Forest

19.5 km

Grillon Trail

Highlight • Trail

Route adapted for people with reduced mobility

Translated by Google •

Tip by

24.2 km

Abbaye Notre-Dame de l'Ouÿe

Highlight • Religious Site

The place is enchanting, the abbey is located in a green setting, letting go is inevitable in the face of this nature.

Translated by Google •

Tip by

26.7 km

SAY les Granges le Roi

Highlight • Other

32.2 km

Mare

Lake

35.1 km

End point

Train Station

Way Types & Surfaces

Way Types

21.2 km

7.26 km

3.43 km

2.34 km

608 m

240 m

Surfaces

12.3 km

9.86 km

9.16 km

2.13 km

1.43 km

144 m

Elevation

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

Highest point (160 m)

Lowest point (80 m)

Weather

Thursday 9 July

36°C

19°C

0 %

Additional weather tips

Max wind speed: 16.0 km/h

to get more detailed weather forecasts along your route

Comments

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Medieval town of Dourdan – Grillon Trail loop from Sermaise

Fortified Farm of Châteaupers

Medieval town of Dourdan

Les Fontaines Bouillantes

Grillon Trail

Abbaye Notre-Dame de l'Ouÿe

SAY les Granges le Roi

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