We'd like to San Pedro for our day in Belize. Is it easy to get to the airport? Do we need to make some kind of arrangements first with the flights? I'd rather catch a flight b/c it's only 15 min as opposed to 45+. We're going to have a 4 year old, 8 year old and 8 month old w/ us. We'd like to just be able to chill out at the beach and relax (have heard the beach there is BEAUTIFUL). Has anyone else done this? Thanks.