From Bailly to Rocquencourt

This short walk allows you to explore the surroundings of Bailly and Roquencourt. If the forest ground is muddy, you can return via the same route you took on the way there. Bailly and Rocquencourt are located in the Versailles plain on the edge of the Forest of Marly. The municipal area of Rocquencourt is relatively small: it is one of the smallest municipalities in the Yvelines department.

Details

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  • Walking
    Activity: Walking
  • ↔
    Distance: 7.68 km
  • ◔
    Average duration: 2h 45 
  • ▲
    Difficulty: Easy

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 196 m
  • ↘
    Descent: - 193 m

  • ▲
    Highest point: 168 m
  • ▼
    Lowest point: 123 m

Description of the walk

Park in the Place du Marché car park.

(S/E) Head towards the roundabout, then turn left onto Rue du Maule. Continue to the entrance to La Gaillarderie, turn right and walk along the car park of the residence to the end.

(1) Take Sentier de la Gaillarderie on the left. Cross Rue du Plan de l'Aître, then Parc de la Châtaigneraie via Allée du Cyprès Chauve. You will come out at Impasse de la Halle.

(2) Continue straight ahead on Allée de la Pépinière, walk past the primary school of the same name and continue along this lane. At the roundabout, continue straight ahead to reach Chemin de Maltoute, which runs alongside Petit Bois and leads you to Rue de Maule.

(3) Cross carefully in two stages using the protected crossings, then take the path opposite uphill that leads to Rue Clémentine de Boucheman. First turn right then left to cross the "Le Parc du Château" residence via Allée du Chêne Fouquet then Rue Henri de Gondi.

(4) At the small square at the end of this street, turn right into the wooded area to reach and cross the Porte de Bailly. Then turn left to reach the forest path at the edge.

(5) Turn right to reach and cross Route de Marly at the pedestrian crossing. Take Chemin de Bailly to Rocquencourt, pass under the two A12 bridges and continue along this path, which runs alongside INRIA and the Paris Fire Brigade Technical Centre, until you reach Roquencourt.

(6) Leave the forest path on your left and continue straight ahead.

(7) Take the fitness trail on the left and rejoin the Bailly path in Roquencourt.

(6) Take the outward route on the right and follow it in the opposite direction until you reach the crossroads at the edge of the forest that you passed on the way out.

(5) Continue straight ahead along a wall until you reach a gate on the left.

(8) Go through this gate to reach the Sente de la Forêt in Bailly. At the end of this path, turn right onto Rue de Noisy and walk along the cemetery.

(9) At the end of Rue de Noisy, continue left and take Allée du Bon Repos. You will return to the car park at Place du Marché (S/E).

Waypoints

  1. S/E : km 0 - alt. 134 m - Market square in Bailly
  2. 1 : km 0.6 - alt. 127 m - Sentier de la Gaillarderie
  3. 2 : km 0.83 - alt. 127 m - Sentier de la Gaillarderie
  4. 3 : km 1.15 - alt. 129 m - Allée de la Pépinière - Mairie de Bailly
  5. 4 : km 1.74 - alt. 129 m - Rue de Maule
  6. 5 : km 2.1 - alt. 140 m - Rue Henri de Gondi - Château de Bailly
  7. 6 : km 2.31 - alt. 150 m - Crossroads at the first circular loop of Bailly
  8. 7 : km 3.31 - alt. 135 m - Crossroads 2nd circular loop of the Rocquencourt fitness trail
  9. 8 : km 4.28 - alt. 154 m - Roquencourt
  10. 9 : km 6.96 - alt. 150 m - Sente de la Forêt
  11. 10 : km 7.41 - alt. 140 m - Allée du Bon Repos
  12. S/E : km 7.68 - alt. 134 m - Market square in Bailly

Reviews and comments

5 / 5
Based on 1 review

Reliability of the description
5 / 5
Ease of following the route
5 / 5
Route interest
5 / 5
cassis78
cassis78

Overall rating : 5 / 5

Date of your route : Mar 02, 2026
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

An interesting walk to get back into shape after winter

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