There are lots of events for you to visit during your stay at La ferme des Carrières

Events in the Oise 
www.oisetourisme.com/Calendrier-des-manifestations

Events in the Chaumont-en-Vexin area  :
www.eterritoire.fr/evenements/france,picardie,oise,epci-246000707/

Events in the Gisors area: 
http://www.tourisme-gisors.fr/evenements/