The forest of Folois is one of the most rare and unique forests in the Europe. Located in the Mountains of Ileia, not far from Ancient Olympia. It consists of oak and is included in the network protected by NATURA 2000 because of its importance, and is estimated to be ancient. In the past the oak was dedicated to Zeus and was considered an emblem of strength. According to Greek Mythology, the oak forest of Foloi was host to Centaurs and nymphs. The Dryads were happy with the rain, crying when the oak leaves were dry, and dying when the tree was cut. It took its name from the king of the Centaurs, Folo, and friend of Hercules (in the Greek Mythology).