Ghost City Tours provides a variety of packages to suit families or adults only. In our case, we did the 11PM "Adults Only" tour which lasted 90 minutes. While full of interesting tidbits about the City's history, the tour was underwhelming. Our guide, Zac, did a nice job but the content was rather boring especially given that this was the "Adults Only" tour. If your list of things to do in Savannah is growing thin, you may want to take the tour. Otherwise, I'd skip it and go listen to a local band at one of the many bars open late night.