Hi Carli,
The reason you are probably having a problem finding info is because Ambergris Caye is not really an all inclusive sort of place. It is eclectic and fascinating. There are many wonderful restaurants and bars and most tourists wouldn't ever want to be tied to their resort. There are no private beaches and that means you can just walk along the seafront and try out local watering and feeding holes at your leisure. I do recall that there are one or two places that do all inclusive here, but honestly, anyone who has visited us here in Ambergris Caye will tell you to just book a place that suits your pocketbook, pack lightly and come and experience the hospitality and uniqueness of the real San Pedro.