Particularly disturbing is the news that the Northern Italian lakes are in bad shape, especially Como and the smaller Iseo. Even my beloved Lake Garda (in the photo), the largest Italian lake, of a spectacular beauty, is not doing well. Many of the most famous spots are polluted, including Tignale, Toscolano Maderno, Salo', Desenzano, Sirmione, Bardolino, Peschiera, Lazise and Torbole.
High marks go instead to Lake Trasimeno in Umbria, which is popular with expatriates, but which I have never cared for.