We are thinking about during the Xcaret excursion through Disney but just want to find out more about it first. I've heard before that once you get there, you have about 4 hours. Is this true and if so, is this enough time to experience everything? Does the price include everything or do you have to pay extra for snorkeling gear? Is the whole thing guided or are you on your own once you get there? For those of you who have done it, were you glad you did? I think that's all of the questions I have for now. Any help would be appreciated.