One of the major advantages of participating in shore excursions sold through Carnival is that we closely monitor the excursion departures and returns.  Therefore, we can assure you that even if there are unexpected delays on an excursion, your ship will be there when you return. Please be aware that if you make your own arrangements, or leave an organized excursion, you will be on your own and it will be up to you to make sure you return to your ship on time.