Grenouiller lake

This 4,000 m² lake is undoubtedly the wildest of the five bodies of water on this walk. It is a splendid observation point for waterfowl and amphibians. The shallow depth of this lake is undergoing eutrophication: in other words, the plants are growing and will fill the available space in the water. This body of water will become successively swamp, then wet meadow.