Not having been to Rome before, I think we did the right thing choosing a guided ship tour that took us fasttrack to all the main sites -inc the Vatican, which had mile long queues and would of took hours to get into - who wants to waste time in queues let alone have a meal!!!
But now I have seen all the main sites, next time I would DIY Rome but on a ship excursion. Rome is a long way from the port, I'm not taking the chance of missing the train, and missing the ship!
P&O Arcadia -Canaries, Aurora- Bruges, Arcadia -Med, Aurora Amsterdam, -Arcadia -Venice, and Ventura Bruges. In 2009 - Oriana and Oceana Fjords.