The Auversoise de VTT is a mountain bike event held in Auvers-sur-Oise, located northwest of Paris in the Val-d'Oise. This event is scheduled for a Sunday in October and features three off-road routes within the Vexin Natural Park. Refreshment stations will provide drinks and sandwiches along the way.
The routes frequently traverse private land, and the organizers emphasize that access is granted through negotiated permissions with landowners. Participants are requested not to reuse these paths after the event without authorization. If sharing GPS files, riders should mark any private sections that are best avoided. They are also asked to moderate their speed when encountering walkers and vehicles, and to bring any litter back to the finish line bins. To maintain order, participants must adhere to the Highway Code and local municipal regulations, remain on the marked course unless officially withdrawing, position themselves at the side of the trail when stopping, and refrain from refilling their bags at the refreshment stations.