Wildsee is a distinctive small lake located high in the northern Black Forest mountain range in southwest Germany, fed by rainwater, and is part of the Kaltenbrunn Nature Reserve. The lake is characterized by a unique geological formation, as in its origin it was a gathering of sand dunes and due to the erosion factors that took place in the area, it turned into a lake with blue water that catches the eye and is a destination for nature lovers to spend the most beautiful times in it.