Natural areas The park's ecological wealth comes from the diversity of the environments, the layout of which is based on nature, and the way they are managed using "differentiated management", that respects ecosystems, and used particularly in the Vallon. Listed natural areas Un des trois lacs supérieurs In 2001, some areas in the park were entered on the ZNIEFF list (Zone Naturelles d'Intérêt Ecologique, Faunistique et Floristique - Natural Areas of Ecological, Faunistic and Floristic Interest). Read more The Vallon Vallon This separate, protected site where you feel like you are in the country, stretches over approximately 4 ha. It is a former motorway reserve that was left as wasteland for almost 30 years ! Read more