Turkey's one of the biggest lakes.. Hazar Lake is a volcanic lake at the foot of Hazarbaba mountain 30 km. from Elazig in Eastern Anatolia which has a 7 km width and 22 km. of length with the deepest point of 250 m. The Eastern Anatolian fault line passing under the Hazar Lake is still active and has caused many changes in the water level of the lake through the history. The so called sunken city under the lake which is the focus of our underwater survey is located at the western of the lake between the Kilise island and the main land in the south. On the contrary of the rising water level in the past, the water level has been decreasing during the last years that's why it is possible now to see the top of the two towers in the entrance of the city walls. ps:photos are not mine.