Find Your Cruise
Catch the free bus from the ship to the port gates. Walk 10mins along the sea front to the train station. Catch the train from Civitavecchia to Roma Termini for €9 - there is a left luggage facility there. When you are ready you then need to catch the Terravision bus that runs to Ciampino from Termini. Bus costs €8. Here is their website http://www.terravision.eu/rome_ciampino.html.