The most beautiful natural sites to discover Essonne

It's walking paths that you never tire of… when you're lucky enough to have a lake near home, what's simpler to train than to go round it? There is no risk of losing you, so you can enjoy the environment, without worrying about your itinerary! The lakes of Viry-Châtillon and Grigny are now classified as a sensitive natural area and natural zone of ecological and floristic ecological interest. Whether you opt for a family trip, a daily jogging or a bike ride, please make sure that you leave behind the footprint of your soles or tires, so as not to disturb this protected nature.

Tariff: free.

Distance: 7,7 km.

Difficulty: .

Unmissable, because located on the heights that are visible south of Saulx-les-Chartreux, the departmental forest of the rock has no less than 98 hectares. Gradually acquired since the late 1970s by local authorities and the National Forestry Office, this is a great place to walk, and allows you to discover an abundant flora: oaks, beeches, chestnut trees, robinia. On the slopes of what everyone here calls the "plateau", you will find the sands of Fontainebleau, giving an original side to the whole.

To know all the 69 municipalities that make up the park on the two departments of Essonne and Seine-et-Marne. Important: the charter available on the website, a true passport for a better understanding and preservation of the park. Every year, on the third Sunday in September, the park organizes the Musical Adventure, a succession of small concerts in the Carrière-sur-Ecole sandstone quarry, as well as an artistic hike in June, punctuated by interventions by actors.