Italy has more than 1,000 lakes, most of these are artificial that have been created by damming river valleys. Many of the lakes are well known but several others offer a great off the tourist path for a few days visit.
In the Prealps of the Lombardy region are the glacial lakes of: Lago Maggiore and Lago Como (Como is the deepest lake in Italy at 410 meter). In the Veneto Region is Lago Garda, Italy's largest lake and one of the best outdoor recreation destinations.
Italy also has coastal lakes, such as Lago Lesina, separated from the sea by a narrow strip of land. Volcanic lakes of Lago Bolsena, Lago Vico, and Lago Bracciano. Lago Trasimeno in the Umbria Region and formed by a land depression.
One must remember that at one time swamps and ponds covered most of flat areas of Italy, these have been drained over the last few hundred years. There are wetlands left over from these projects; some of the better know are Valli di Comacchio in the Emilia Romagna Region and the Cagliari lagetto in the Sardinia Region.
Italian Coastal lagoons are also found at the mouths of many of major rivers the most importance is the Venetian lagoon in the northern Adriatic, the Lagoon of Orbetello on the Tuscan coast.