Here are some useful sites I have found which may help in your planning.
PDF Port. Guide with info about Tourist sites too.
Rome for Independent Travelers website…
We will be taking the Train to the Port at the start of the cruise.
Rome Mini Guide for Android – great little overview App
http://www.androidapps.com/curated-apps/2644-top-5-must-have-rome-apps haven’t looked at these yet.
Rome Mini Guide – iTunes – Apple
If you are in Rome between 5pm and 8pm why not take part in the passeggiata and visit some of the beautiful sites after dark.
The Vatican museum is free of charge on the last Sunday of the month.
If you are going to visit the Colleseum see the official ticketing information.
Where To Buy Colleseum Entrance Tickets – A Top Tip
The standard entrance ticket to the Colosseum also includes entrance to the Roman Forum and Palatine Hill. All three attractions have separate ticketing entrances. You can walk between the Palatine Hill and Roman Forum without exiting.
The ticket kiosk at the Colosseum has by far the longest queues.
Buy Ticket At Palatine Hill & Use Empty Entrance On Left
If you want to visit the Colosseum, Roman Forum and Palatine Hill do yourself a favour, buy your tickets at the Palatine Hill entrance.
Then walk uphill exploring the Palatine Hill is more gradual than from the Roman Forum with more shade. After performing a circuit of the Palatine Hill you will get a great birds eye view down onto the Roman Forum as you descend into it, getting a good initial orientation in the process.
The entrance of the Roman Forum is a long way from the Colosseum, but there is an exit only gate from the Roman Forum right next to the Colosseum.
The ticket gate for the Palatine Hill often has no queues at all and is midway down the road Via di San Gregorio that runs from the Colosseum along the base of the Palatine Hill less than 5 minutes walk from the Colosseum.
The Roma Pass also covers The Colosseum, Roman Forum and Palatine Hill.
Directions to Palentine Hill entrance
You’ll arrive at the Metro Colosseo stop (just above the Colosseum on the map) walk across the street, then down the path toward Constantine’s arch (keeping the Colosseum on your left). Go past the arch and in a few moments you’ll reach Via San Gregorio. The Palatine Hill entrance is on your right — on the map, it’s where the white T-shaped area is just above the “e” in “Gregorio.”