You can always browse shore excursions online at www.carnival.com. This will help you decide which of our exciting destinations you would like to visit.  However, to make a shore excursion booking, you must first book a cruise and meet all deposit requirements for each of the guests for which you are booking shore excursions. At this point, you should receive your cruise booking number. If you have done so and still do not have a cruise booking number, please contact your Travel Agent or whoever assisted you with your cruise booking.