Originally posted by Old Traveler:
Just a quick note to say thanks to all who responsed to my query. No one ever plans on getting sick, but things do happen and we just wanted to know how much of a financial commitment we were making should it happen.
You don't have to buy them ahead of time. I have bought many shore excursion tickets the night before. The vast majority of excursions do not sell out. Unless you are considering a specialty excursion with limited space.