Lago Trasimeno

A splash of inky blue on the hilly landscape, Lago Trasimeno is where Umbria spills over into Tuscany. Italy's fourth-largest lake is a prime spot if you want to tiptoe off the well-trodden trail and slip into the languid rhythm of lake life. All around the 128-sq-km lake, olive groves, woods of oak and cypress trees, vines and sunflower fields frame castle-topped medieval towns, such as Castiglione del Lago and Passignano, draped along its shores like a daisy chain.