레 브레비에르‬에서 가장 멋진 ‪11‬개의 천연기념물

Near Maincourt-sur-Yvette, this wood has beautiful rock formations climbing up the first slopes of the Chevreuse valley, just a few meters from the river.

This former retention basin was part of the network that was used to supply water to the Palace of Versailles. Today, it is a beautiful bird sanctuary where it is pleasant to walk.

It is a beautiful place that is quite cool even in the heat because it runs along the Yvette and several ponds, but it concentrates a lot of people on Sundays on a fairly narrow path. In high season, prefer Saturday for this course

Napoleon's bridge crossing the ponds of the Cheuvreuse valley. Very nice place to get some air in the Paris region

Passing over the Pont Napoléon between the Etangs de Saint-Hubert and de Pourras in the heart of the Cheuvreuse Valley

At the edge of this road a pond which forms with the forest which surrounds it a protected natural area. Each year, during the thaw (roughly from February to April), a "toadstool" is installed on the road that runs along the pond. But what is a toaddrome exactly? So, it is not a place where one could indulge in clandestine bets on toad races, but a device intended to prevent these poor beasts from being crushed by cars in crossing the road to breed and lay their eggs in the pond on the other side of the road. Indeed, thousands of common toads, but also frogs and newts, begin their long prenuptial migrations around March each year. They go to the nearest pond or pond to breed. Once their duty is done, they leave the aquatic environment to return to their summering areas where they will spend most of their time feeding. In order to avoid a carnage of amphibians on the road, a tarpaulin is planted 600m on each side of the road to block their passage. In various places a hole has been made in which a bucket is buried. By looking for a passage all along the tarpaulin, the toad will inevitably end up at the bottom of a bucket. Every morning, volunteers come to collect toads and other frogs and drop them off on the other side of the road.

A family and incredible place a few steps from the city center of Rambouillet

On the path along the Yvette very pretty passage to do by mountain bike or on foot there are beautiful rocks and very beautiful trees