Rome to Florence by boat ?

[granted]

Ideas please about going by boat from Rome to Florence? and hiring a car there and dropping it off at Pisa Airport around July 16th - Thanks

[itravler]

Traveling by boat, we got a chance to see the beautiful nature scenes that dot the shoreline of the lake. Our morning drive led us to Florence, the Renaissance city in the beautiful mountain folds of Tuscany. We have seen the Duomo, Giotto s Bell-Tower, Piazza della Signoria and Santa Croce as our expert local guide walked with us through the city. We hired a new Astra car and all seemed to be ok with the car. Our vacation was very nice and peaceful.