Visas: Citizens of the USA, Canada, New Zealand, Australia, some Asian countries and most European countries don't require visas. Nationals from these countries can stay in Hungary for a maximum period of 90 days during the six months following the date of first entry into Hungary. A separate permit is required for longer stays. Visas are not available at the Hungarian border or Hungarian airports.
Health risks: leeches & ticks (Always check your entire body after walking through a potentially tick-infested area, as ticks can cause skin infections and more serious diseases.