Kournas Lake is the only freshwater lake in Crete. Lake Kournas was known as Lake Koressia in antiquity but later took its current name from the Arabic word for lake. The lake is in a beautiful landscape, lying in a valley among the hills, about 4 km from Georgioupolis in Chania Prefecture (west Crete). Lake Kournas is relatively small, with a maximum length of 1,087 m and a maximum breadth of 880 m. It covers an area of 579,000 sq. m. and is generally shallow, 22.5 m at its deepest point, while it lies approximately 20 m above sea level.