Translation of Wechselgeld

A word might have one meaning in Mexico, and a totally other meaning in Columbia or in Venezuela. Let me check the words that are already translated before doing anything. I will try to add the other points tomorrow.
You have to be careful when you go on summer vacation. There are many dangers but the most dangerous one is the sun itself, because if you're not careful it may harm you. People underestimate the rays.
My name is Michael. I am from Budapest in Hungaria. I speak Hungarian, of course and English. Maybe I could help you with something. I would also like to learn Spanish. Would you mind teaching me?