We’re on a Mediterranean cruise, stopping off in Livorno for 1 day in Tuscany. The ships excursions are very expensive and may be overwhelming for my sons (9, 10). Any suggestions for car rentals in Liverno, and a driving route? My husband and I have been to Florence and I don’t want to spend too much time driving. Would love to explore the beautiful little towns of Tuscany. Thinking maybe Pisa, Lucca, San Gimignano or Volterra? Thanks in advance!