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 its good fish restaurants. The port is about a 700m walk from the train station – exit, turn right into Viale Garibaldi and follow along the seafront.
For tasty seafood try Ristorante La Bomboniera near the port. Otherwise, there are several decent eateries on Piazza Aurelio Saffi.
Civitavecchia Shore Excursion: Rome Segway Tour
Experience the thrill of a Segway ride through Ancient Rome when your cruise shop docks at Civitavecchia Port. On a self-balancing electric scooter, follow a guide around Rome’s 2,000-year-old ruins while hearing about their history from an audio guide.
Civitavecchia Shore Excursion: Independent Rome Day Trip
When your cruise ship docks at the Civitavecchia port, embark on an independent shore excursion to Rome. Your private driver will pick you up and take you to the Eternal City to see top Rome attractions such as the Trevi Fountain, the Colosseum, Piazza Navona, the Pantheon and St Peter's Basilica.