The lake is located in a beautiful landscape within a valley between the hills, about 4 km from Georgioupolis in Chania. Kournas lake is relatively small with a maximum length of 1087 meters and a maximum width 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 is about 20 meters above sea level. Lake Kournas and the sea near Georgioupoli in the background is the perfect place for an afternoon stroll or an excursion nearby. Many people like to have an afternoon picnic there. The scenery is beautiful and relaxing, if you want to go for a walk in the countryside, swim or ride a pedalo on the lake. There are two sources in southeastern bank, one of which, Mati or Amati ( "eye"), as the locals call it, is visible at the end of summer. The lake is fed by streams from the mountains and hills, whose underground courses are interrupted by the local bedrock on the way to the sea.