View towards Mount Kyllini or Mount Cyllene (Ziria) in prefecture of Corinth, Peloponnese, Greece. Famous in myth as the site where Herakles slew the man-eating Stymphalian Birds, the Stymphalia wetland ecosystem is rich in flora and fauna and hosts over 150 species of birds. The lake is one of the most important wetlands in the Mediterranean and has been included in the European Network of protected areas, NATURA 200.