This link is good as it gives you pictures. http://www.rometoolkit.com/airport/civitavechia_train.htm http://www.civitavecchiaport.org/how-to-get-there/ And this is a link to a train timetable. This was the best thing I had with me, made me a little more at ease about not missing the train. http://www.civitavecchia.net/travellers-trains.html You will see a fast track train advertised on here, you may want to look into that. There was also people at the port exit asking if you wanted to book a fast train (didn't use them so I cannot vouch for them). We just went passed them to the train station our selves. Don't forget to go past the queue and to the right you will see a little news agent where I purchased 4 BIRG tickets for 12euros each. We had to stamp it in the yellow machine on the wall at the station entrance. Good luck.