I just booked a roundtrip cruise for our family of five out of Civitavecchia and started reading this board for transportation advice. We arrive into FCO the afternoon before the cruise and plan to spend 3 days in Rome after the cruise before flying home. Based on what I've read it sounds like the best plan after the ship returns is to take the train from the port to the Roma Termini and stay in a hotel close by. I checked and there are tickets from Civitavecchia, but not from the port. However, it sounds like I can just take the bus over to the train station and pay the bus driver (credit card?).
What about before the cruise? Should I go directly to Civitavecchia from the airport? I am leaning that way to make the logistics easier and to also make sure we don't miss the ship. Also, it seems like there are some interesting sites and things to do near the port. If we do this, what is the best way to get there? Thanks!