The tour was informative but over priced. If you stay on the trolley for one circuit, it lasts for about two hours. We got off our cruise ship, went immediately to our hotel, then to Old Town to start our tour. It was almost noon so we stopped downtown to eat lunch. We again boarded a trolley back to Old Town. By this time it was too late to go anywhere else because Hop On closes by 4:30 PM. There needs to be a half day rate or the ticket should be good for 24 hours from the time you start.