- the lake
- the oleanders
- the riviera feel
Things to remember: I've heard that in recent years, the area floods pretty much annually and one can see the marks of the water level on the buildings around the lake. So make sure you check the weather forecast before you go!
Also, floods or no floods, if it rains, you want to be prepared. So pack water-resistant shoes and appropriate outerwear. There are a lot of slopes in the area, so if you are looking to do a lot of walking, make sure you bring comfortable footwear; the area around the lake is easy-walking.
That goes for clothing too! Avoid tight skirts that limit movement - fit and flare dresses are both beautiful and allow ease of movement.
Photo credits (top to bottom):
left column: Wedding Day in Italy, Wikipedia , Italian Visits, TripAdvisor
center column: Travel Italia, [mine], Wikimedia Commons
right column: [mine], [mine] , Varese Cultura