Us en Vexin walk in Pontoise
Hiking from Us en Vexin to Pontoise - 19 km RDV Gare Saint Lazare at 7:45 am on the platform of the J train. Train departs for Gisors at 8:07 a.m., arrives in Us en Vexin at 9:01 a.m. Departure from "Bonheur" because the next train is at 11 am.... We follow the Viosne valley […]