My experience with the hop on hop off trolley tour was great! The women who lead the tour on the trollies we were on had a great sense of humor and were very knowledgeable about Savannah's history, which
made it very interesting. It runs from 9:00-4:00 or 4:30 and trollies pick up every 20 minutes, I believe, so you can explore all the areas for as long as like.