The village of Planetero in Kalavrita (Achaea, Peloponnese) offers the visitor a unique landscape with plane and walnut trees around the sources of the Aroanios river. The picturesque village is located at an altitude of 700 meters, 25 km from Kalavrita, on the road that leads to Kleitoria. The forest is consisted of centuries old plane trees and water mills - one of which it is still in function - with the springs of the Aroanios river and the water gushing through the rocks. Some of the huge, centuries old plane trees have trunks of a diameter that reaches 4 meters. The forest area is protected by the Natura 2000 "Mount Helmos and Stygos waters". Finally, around the springs are also small restaurants where the visitors can enjoy fresh fish with some of them owing their own trout fish farms.