Try to bring mostly cotton clothing. Cotton Poly blends will not wrinkle too much and the natural fibers are so much nicer in tropical areas. A great tip I was taught when packing is too roll your clothing instead of folding and it will not wrinkle. A floppy hat is great, a first day sunburn can take a lot of fun out of a trip! And, while you will want something nice for going out to dinner - everyone wears sandals or other flats! Comfortable shoes are probably the most important thing. Hope you have an outstanding trip!