Longpont-sur-Orge and its basilica

A short, varied and easy hike. Streams, meadows, forests, housing estates and fields, and of course the basilica of Longpont, are the ingredients of this walk just a few kilometres from Paris.

Details

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  • Walking
    Activity: Walking
  • ↔
    Distance: 7.89 km
  • ◔
    Average duration: 2h 20 
  • ▲
    Difficulty: Easy

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 41 m
  • ↘
    Descent: - 41 m

  • ▲
    Highest point: 84 m
  • ▼
    Lowest point: 39 m

Photos

Description of the walk

Departure from the Parc de Lormoy car park, on the edge of the D46.

(S/E) From the car park, walk along the Saint-Michel pond on your left.

(1) At the end of the basin, at the intersection, take the path on the left. After about 100 metres, take the bridge on the right. At the end of the bridge, turn right and, at the intersection about 100 metres further on, continue straight ahead.

(2) At the next intersection, continue straight ahead and follow the Orge River on your right until you reach the D25. Cross the road, cross the Orge River and immediately turn left (north) onto the path that runs alongside the river. Follow the Orge River until you reach the next bridge.

(3) Take the bridge on the left. At the end of the bridge, turn left and then immediately right to follow a stadium. At the end, turn left and continue for about 100 metres, then turn right (Rue de l'Orge). At the end of the street, follow Rue Jean Jaurès on the left. Pass three intersections on the right and take the fourth (Rue de la Seigneurie).

(4) At the fork, take the left-hand road (Chemin des Chartières). Continue straight ahead until you reach Rue de Verdun, turn right, then immediately left onto Chemin de l'Avenir. Follow this road for 200 metres until you reach a stone wall.

(5) Turn left, following this wall along the edge of the forest. Continue until you reach the houses and turn right onto Rue du Lavoir. Follow this street to the left for about 100 metres. At the intersection, turn right onto Rue de la Source. At the next intersection, turn left onto Rue de Longpont. Take the first right (Allée du Colombier). Continue through a housing estate and take a narrow road opposite until you reach Rue de la Tourelle.

(6) Follow Rue de la Tourelle to the left for about 50 metres and take the first right (Voie des Roches). At the end of this road, turn left (Rue de Paris) and, 200 metres further on, turn right (Chemin de la Croix Rouge Fer).

(7) At the next crossroads, take the first left (Rue du Champ de Bataille) until you reach the Longpont Basilica.

(8) Pass behind the basilica on the right-hand side and continue straight ahead down the path between the meadows to return to the path you took on the way there.

(2) Turn right and follow the path for about 100 metres. At the first intersection, take the path on the right to go around the Saint-Michel basin on the right. At the end, take the bridge and turn right to return to the car park where you started (S/E).

Waypoints

  1. S/E : km 0 - alt. 43 m - Parking at Parc de Lormoy
  2. 1 : km 0.58 - alt. 41 m - First intersection after the basin
  3. 2 : km 0.91 - alt. 40 m - Crossroads
  4. 3 : km 2.43 - alt. 40 m - Bridge - Orge (l')
  5. 4 : km 3.25 - alt. 60 m - Chemin des Chartrières
  6. 5 : km 3.79 - alt. 69 m - Stone wall
  7. 6 : km 4.81 - alt. 82 m - Narrow path
  8. 7 : km 5.88 - alt. 77 m - Intersection with Rue du Champ de Bataille
  9. 8 : km 6.47 - alt. 57 m - Basilique de Longpont
  10. S/E : km 7.89 - alt. 43 m - Parking at Parc de Lormoy

Notes

This hike is also accessible by train: stop at Saint-Michel-sur-Orge station (RER line C). Follow theGR® signs along the D46 (Rue de Montlhéry) until you reach the roundabout at 42, and a little further on, on the right, you will find the starting point (S/E).

Worth a visit

The Basilica of Longpont is well worth a visit (open every day from 9:00 a.m. to 7:00 p.m.)!

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

4.4 / 5
Based on 25 reviews

Reliability of the description
4.5 / 5
Ease of following the route
4.5 / 5
Route interest
4.1 / 5
Pécastaings
Pécastaings

Overall rating : 5 / 5

Date of your route : Mar 04, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

A pleasant route, with water, vegetation and birds.
I had scouted the route on Thursday 27 February, and twice I turned back because the Orge was overflowing.
On the day of the hike, the river had returned to its normal course.
Thanks again

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edamain
edamain

Thank you.
I recommend you come back when the weather is better.
It will be much more pleasant than at the moment, when the rivers are full and flooding many meadows and paths due to the exceptional weather we have had in recent weeks.
Enjoy your walks.

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Youmino9172
Youmino9172
• Edited:

Overall rating : 4.3 / 5

Date of your route : Feb 12, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★☆☆ Average
Very busy route : No

Hike done in winter. Not too bad for walking, especially when the paths are muddy like they are now, but there are quite a few urban areas. So I would say it's an average hike. The sections along the Orge are pleasant, and the superb basilica in Longpont is definitely worth a visit.

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Perdita
Perdita

Overall rating : 4 / 5

Date of your route : Nov 17, 2024
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

A beautiful hike to enjoy the scenery, nature and architecture of the basilica. Very pleasant with no major difficulties.

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Bobessonne91
Bobessonne91
• Edited:

Overall rating : 3.7 / 5

Date of your route : Feb 11, 2023
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★☆☆ Average
Very busy route : Yes

The end of the urban route is rather unremarkable, with only the Abbey remaining.

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edamain
edamain

Thanks for the feedback 😉. It's true that part of the route goes through a residential area, but it's not unpleasant. You can take a direct route to the basilica, but that would really shorten the route, and walking through the fields isn't unpleasant either 😉. Enjoy your walks 🚶

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MIRCOS
MIRCOS
• Edited:

Overall rating : 4.7 / 5

Date of your route : May 13, 2022
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

Very pleasant start to the hike until Point 4.
Then we crossed through some less interesting residential areas.
It would be preferable to find a more direct route to the basilica in Longpont.
The route description is very accurate.

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RaonLesLeau
RaonLesLeau

Overall rating : 4 / 5

Date of your route : Apr 21, 2021
Reliability of the description : ★★★★☆ Good
Ease of following the route : Not used / Not applicable
Route interest : ★★★★☆ Good
Very busy route : Yes

An interesting hike because it's within a 10 km radius. We wandered around Longpont for a while trying to find the road. We had a pleasant picnic in the basilica park.

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Maby01
Maby01

Overall rating : 5 / 5

Date of your route : Apr 15, 2021
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

A lovely walk along the water's edge, through the countryside and residential areas. A little too busy at the start and end of the route, especially with bicycles.

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edamain
edamain

👍 Thank you. Have a good hike!

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Souk El
Souk El

Overall rating : 5 / 5

Date of your route : Mar 01, 2021
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

Hello,
This is the first time we have used your maps.
The route is well detailed and clear.
We found many points of interest along the route, including the banks of the River Orge and then a series of well-spaced buildings with interesting architecture.
The basilica in Longpont-sur-Orge is well worth a visit.

Thank you and enjoy your walk.

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isavlb91
isavlb91

Overall rating : 5 / 5

Date of your route : Jun 13, 2020
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

Nice hike, very busy along the ponds at the start of the trail.
Much quieter further on
Varied hike

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fral
fral

Overall rating : 4.7 / 5

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

A very easy hike, the route is pleasant.
It's a lovely walk to enjoy with the family.

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Stephane9403
Stephane9403
• Edited:

Overall rating : 4.3 / 5

Date of your route : May 16, 2020
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

A route that can easily be done with the family

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Apolline75
Apolline75

Overall rating : 4.5 / 5

Date of your route : May 16, 2020
Reliability of the description : Not used / Not applicable
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

A varied walk. The area around the Orge river is very pleasant.

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