If you have not been to the Alhambra it is worthwhile to see. We were there last year on WAVE. If you book a private tour, please ask them to get individual tickets for your group. Otherwise you cannot go in and out unless you are together. There was a great restaurant we enjoyed at the entrance called the Hotel America. You will also want to make sure your guide can take you into Granada. Our guide was not allowed to do that - it turned out that he was only a driver.