There's no compelling reason to come to Civitavecchia, other than to take a ferry to Sardinia, though you could make a stop long enough to eat at one of the good fish restaurants in this pleasant town. Established by Emperor Trajan in AD 106, it was later conquered by the Saracens, but regained importance as a papal stronghold in the 16th century. The medieval town was almost completely destroyed by bombing during WWII.
The port is about a 400m walk from the train station. As you leave the station, turn right into Viale Garibaldi and follow the road along the seafront. If you're stopping for a meal, try upmarket La Scaletta.
Civitavecchia Shore Excursion: Rome in One Day Private Tour
For cruise passengers arriving in Civitavecchia with only a single day to see the beautiful city of Rome and what it has to offer - this privately guided fully narrated shore excursion is the best option.
Civitavecchia Shore Excursion: Rome in One Day Sightseeing Tour
See the very best of Rome on a full-day shore excursion! When your cruise ship docks in Civitavecchia Port, head into the city with your expert guide to see all the top Rome attractions and take lunch at a popular local restaurant.