Been on tropical vacations many times.. in a non US area? Bring BUG SPRAY.. in Mexico you can get DDT (yup) which at the time seemed pretty darned good. Depends on how far out from tourist areas you are. The farther you go.. the less chance of "OFF" being sold. Wouldnt stop me fromgoing again.. you going to find heaven. And check out early sunrises and last minute sunsets.. they didnt put them in movies without a reason. They are truly special.Oh and dont go for a night walk without a flashlight (thats when the large spiders go walking too)... I did it, in thongs.. only once.