We are going to be staying on Ambergris Caye (most likely the Grand Caribe). Our plan was to fly to Belize City and then fly to the island. If we want to do the cave tubing/zip line tours wouldn't be best to stay the first night in Belize City, do the tours and then fly over to the island? Or, possibly do it at the end of the trip. Does the island get as much rain as the mainland? If so, is it so much that we should reschedule the trip for another month?