P-PiccoloStelvio-7Salite-V.Arno (64km)

Wonderful route (the Tour of 7 Climbs); it's up&down with short climbs, but you need good legs to complete, because it's never really flat. If you look at the altitute, there are no big mountains, but it's a series of climbs mostly shorter than 1km. The most know are Piccolo Stelvio starting at km 29 (Gornate Superiore) and Bernate (km 45). Take care about route conditions, because pavement is very often quite bad.