Forget Florence - this port should be labelled Livorno. We had visited Florence on our pre-cruise week in Tuscany and found it highly over rated. Yes the galleries are top-notch, but outside of the Cathedral you might as well have been in Frankfurt. Instead, take the time to visit Sienna, Volterra, Pisa, Lucca or the Cinque Terra. Buses and trains are easily accessible in Livorno and relatively inexpensive. The Cinque Terra is a 2.5 hour train ride but well worth the time. One of the sites you'll pass shows the mountain quarries and their marble stacked around the train station.