Lake Vouliagmeni is a natural brackish lake with thermal properties located in Vouliagmeni, Attica. It is part of the Natura 2000 areas and has been characterized as a landscape of special natural beauty. The lake is located at the southern end of Mount Hymettus, near the sea. It is located in an elliptical cavity with a length of 260 meters and a width of 145 meters. The lake is located half a meter above sea level. The lake is located at the southern end of Mount Hymettus, near the sea. It is located in an elliptical cavity with a length of 260 meters and a width of 145 meters. The lake is located half a meter above sea level.