Air

Closest airports are:

• Pula
• Rijeka
• Trieste (Italy)
• Ljubljana (Slovenia)
• Venezia (solution with boat?)

There are some cheap airlines (EasyJet, Flyglobespan, German Wings, Ryan Air, ScandJet, TUIFly, Wizzair) flying to this cities. There is a great page that might help you find the right flight for you!

• Skyscanner
• Croatia Airlines
• Pula airport

Sea

For all salseros coming from Italy or passing through Italy, you might want to look at a ferry line from Venice to Rovinj. Please look at this link from more informations:

• Venezia Lines SPA
• Emilia Romagna Lines 
• Jadrolinija

Land

Coming by car? Having your own transportation? Look at some of the rout planning sites:

• RoutePlanner
• Michellin

Coming by train?

The closest train stations are in Rijeka and Pula from where only a bus drives to Rovinj. 

• Croatian Railways

For some general regulations in Croatia, please look at the following pages:

• Arrival by car
• General travel info

Also, a site of Croatian Tourist Board can help you find some more info about travel to Croatia.