We went on our own and followed Rick Steves' Audio Europe tour of Pompeii. We loved doing it this way because we could go at our own pace and skip things if we wanted. My daughter really hates herd tour groups and gets really antsy when she has to wait around for other people or listen to things she's not interested in. (We also used Rick Steves' Audio Europe tour at the Colosseum and in the Sistine Chapel. Just make sure you download them before your trip--they're free, and that you have headphones so you can listen at the sites.)