The Camper’s take
Updated June 2026
Free overnight parking beside a lake with swimming area, picnic tables and barbecues. Large level car park offering water fill-up, grey/black water disposal and self-cleaning toilets. Adjacent to leisure centre. Water shut off outside season. Open access at night. Quiet on weekdays but significant disturbances and petty crime reported during peak season.
Highlights
- Pleasant natural setting with a lake and walking trails
- Free waste disposal and water services, usually functional
- Spacious parking with many spots, suitable for large campervans
- Peaceful on weekdays and out of season
Good to know
- Water unavailable off-season (November-March)
- Issues with crime, reckless driving, drug dealing, and noise during peak season (April–October)
- Water connection without threading, adapter/jerry can needed
- Slow and complicated water tap for refilling
Motorhome access : Spacious flat parking area for big motorhomes. Two zones: P2 behind barriers (main parking) + overflow grass area by the lake. A few spots on a slight slope under 6m are not recommended. Gates may be closed at night if the leisure center is closed
Rate
Facilities
Activities nearby
Opening hours
Ouvert toute l'année
Street View
Open in Google Street ViewFrequently asked questions
Is Motorhome area with all services Grignon free?
Yes, it is free.
What facilities are available?
Available: Pets allowed, Bakery, Mobile signal, Black water, Grey water, Water, Bins, Toilets.
When is it open?
Ouvert toute l'année
Is it a quiet place?
It varies by season according to traveller reviews.
What can you do nearby?
Nearby: Swimming, Playground, Viewpoint.