We're heading down in Oct, and want to do a day trip to Kennedy. We'll have a rental for the week, but I've seen the combined tours out of Orlando. Has anyone taken a bus tour of Kennedy and/or the airboats? Is it worth it to take the tour, or to drive ourselves? I'm inclined to let someone else do the driving while sitting comfortably on a bus, but DH and MIL don't want to spend extra money if we're already spending on the rental. Any thoughts?