Etenna, which is 29 km. north of Manavgat, is founded on the hill, is at the upper part of today’s Sırt Village. At the top of the city, it is thought as a bishop centre during Byzantium period, there is an Acropolis, which is composed of terraces surrounded by ramparts, and at the best preserved and highest slopes of the city. There is a Herron (a tomb for an exalted person) at the south of the city. Basilica, agora, church, hamam and cisterns are important historical ruins other than these.