I plan on traveling between Venice, Siena, and Sorrento. Is the train the best way to go?
From Venice to Siena the best is a high speed train from Venice to Florence, then a bus from Florence to Siena. From Siena to Sorrento the best is a train to Naples, then a Circumvesuviana commuter train from Naples to Sorrento www.trenitalia.com
www.vesuviana.com