John, we only had three days. We arrived around 9am and had the Ancient Rome (4 hours) scheduled for that afternoon. That evening we had the Piazaa Navona, Tivoli, and rest of evening tour (3 hours). Next morning we had introductory tour (2 hours, which we skipped) followed by Vatican tour (4 hours). Third day we had the St Peter's mausoleum tour (2 hours) followed in late afternoon by Villa Borghese (2 hours). Next day we flew to Venice to join Voyager. As the tours were no longer than four hours, we did have some time to explore on our own and to rest.