Here we find a vast sand pit in the middle of the trees. The preserved setting is quite exotic. It's hard to believe that we are a few kilometers from …
National geological reserve in a former sandstone quarry. Very well appointed. Educational panels on the geology and history of quarries. Beautiful view of the Juine valley
The 3 cellars of Sermaise constitute the most important Essonne site for the hibernation of chiroptera. Indeed 6 different species of bats have been observed