The largest stretch of inland water in central Italy and the fourth largest lake in the country, Lake Trasimene covers a surface area of 80 square miles with a perimeter of 33 miles. The lake is encircled almost completely by a natural curtain of rolling green hills, offering a soothing panorama with the highest peaks to the north standing at 2,600 feet above sea level. With the exception of two promontories at Castiglione del Lago and Monte del Lago, the lake`s shores run softly down to the water level. Three islands emerge from the water at the center of the lake: Polvese, Isola Maggiore and Isola Minore. Due to its proximity to the regional capital, Perugia, Lake Trasimene is frequently referred to as `il lago di Perugia,` although to the northwest the lake borders with the Valdichiana basin of Tuscany. All towns around Lake Trasimene are well equipped with tourist facilities as this is still a popular holiday destination during the summer months.