Lake Iseo or Lago d`Iseo or Sebino is the fourth largest lake in Lombardy, Italy. The lake was formed by the Valcamonica Glacier, and is 24 kilometres long and up to 5 kilometres wide. This width is not always obvious as the largest lake island in Europe, Monte Isola, sits in the centre of the lake. It is in the north of the country in the Val Camonica area, near the cities of Brescia and Bergamo.