Start downtown at the battery, then walk around and enjoy. Many of the houses in the historic district offer tours. As Godogs57 said, tour at least one of the plantations. They are amazing.
You won't run out of stuff to do and see in a week. I love that town. If you enjoy it, there is actually more of Savannah preserved than Charleston. You'll want to take a trip there someday as well.
Give your son a well deserved pat on the back from the campfire, and have fun in the old south!
Oh yeah.....DO NOT leave without seeing the H.L. Hunley, a confederate submarine. That's right, no chit! A confederate submarine!!!!!
https://www.hunley.org/weekend-tour...campaign=branding%20in-market%20expanded
