Have you ever been sick on a vacation? The only time it's happened to me was in Seoul, South Korea. I don't know if I just caught a bug when I was there or if it was food poisoning, but I was so sick that I had to extend my stay in my accommodation and cancel my flights and re-book. It messed up my travel plans and was just an all round terrible (and costly!) experience! Sadly though apart from normal precautions (ie. not drinking the water from the tap) I don't know what else I could have done to not get sick! What about you? Ever been sick when you're traveling? Any pointers on how you avoid getting sick if you've never been struck down by a traveling illness?