On the banks of the Bièvre, you might be lucky enough to spot a host of wildlife, including frogs, fish, birds (like the kingfisher or the heron which can be seen among the bulrushes) and dragonflies. Deer in Vilgénis park? Yes. It’s no legend, you can really see them roaming free in the park of a town with a population of 50,000! Proof of the perfect state of this area, which has been protected for a long time.