Open days at the Petit Robinson vineyard cellar
Château de Grouchy · Osny · Val-d'Oise
- When
- Saturday, September 19, 2026
- 01:00 PM – 04:00 PM
- Where
- Château de Grouchy
- 14 rue William Thornley 95520 Osny, Osny
- Conditions
- Free entry
Self-guided tour
Programme published by the venue on the French Ministry of Culture’s calendar. Official event page