We are doing a California Costal cruise in October and will be in San Diego for the day (9am-6pm). Was really hoping to do a tour of the zoo, but our ship is not offering a shore excursion for the zoo. Any ideas or suggestions on how we can see the zoo. I do not know the logistics of the area. It is possible to take a taxi from the port to the zoo, or private tours, etc. Thanks for any information.