Northern Italy's lakes spread Como's deep finger between Bellagio and Varenna, Garda's Sirmione peninsula and Lake Garda's broad south basin, Maggiore's Borromean Islands, and the smaller alpine Lake Iseo with Monte Isola.
Lakes warming for boat trips, Bellagio gardens at peak with rhododendrons, and Lake Garda's Sirmione walking comfortable before summer crowds.
Como hits 30°C and George Clooney's Villa l'Oleandra paparazzi-watched, Lake Garda packed with German and Austrian families, but Iseo stays quieter.
Lakes pleasant in autumn light, Lake Como's Villa Carlotta gardens turning gold, and the Borromean Islands' Isola Bella accessible without summer ferry queues.
Lakes quiet with most ferry services reduced, but Como's Cathedral and Bellagio's Villa Melzi stay open, and the alpine ski slopes above Lake Como at Madesimo run December-March.