My tour operator was charging 35 Euro per person for going to visist Pisa from Florence as a 3 houtr tour. My family had 5 members and we were staying in Hotel Rivoli which is opposite the station. We took train to Pisa (14 Euro/Person round trip) and then bus from Pisa station to Duomo 1.25 Euro Person) and visited the Leaning Tower of Pisa. I think this a good option for bigger families or groups and very convenient.
If you own or manage Tours of Pisa, register now for free tools to enhance your listing, attract new reviews, and respond to reviewers.