Located at no more than 45 minutes from our place, we naturally chose to explore the beautiful Park of the Haute Vallée de Chevreuse, in the Yvelines department. The Vallée de Chevreuse is one of the 53 French regional natural parks. This park, the Haute Vallée de Chevreuse Regional Natural Park, was the first created in the Île-de-France region. Ready to discover what to see and what to do in the Haute Vallée de Chevreuse?