The Gorge of Agia Anastasia starts from Kenourgio Horio, Province Pediada (altitude 160m) and ends at the seaside settlement of Gournes. The name is taken after the cavernous chapel of Saint Anastasia, located near its entrance. The stream flowing in it gathers the waters from the area east of Sgourokefali and starts near Agia Triada.
The vegetation is restricted to oleanders and the walls get narrow in several points. The descent of the gorge takes about three hours. Unfortunately the gorge has suffered severe contamination by garbage deposits and waste by the surrounding sheepfolds. The situation is still tragic, despite the constant pleas of hiking clubs to the municipality of Hersonissos.