hi guys, yes they attack tourists more than locals, once you have a decent suntan the skin is a little too tough for the sand flies. there is spray/wipes and pills you can take that prevents the bites...(Rubbing fresh cow manure on your body will repel them) never heard of that one that's Olev's solution perhaps that is what aussies do instead of buying the spray or wipes, sounds like the cheap way out to me but Olev says it works so must be true, cheers