The Canyon of Petroussa - Pyrgoi begins north of the village of Pirgoi and terminates in Petroussa. With a length of more than 10 kilometers it is an attraction for nature lovers - hikers, who can cross it beneath vertical rocks, within a landscape of stunning natural beauty. On the slopes of the canyon colorful wildflowers, resistant dry plants and interesting arboreal vegetation are hosted. Furthermore, the canyon is a shelter for many species of fauna. The route through the canyon is almost flat, becoming uphill only in some points and the ground is covered with stones of streams and winds between steep and very wooded ridges. In many places it becomes extremely narrow with width not exceeding 3-5 meters, where basins with water are formed.