To Rovinj

From the north:
Ljubljana -> Koper -> Kaštel or Plovanija border crossing -> Buje -> Rovinj
ili
Villach -> Udine -> Trieste -> Koper -> Kaštel or Plovanija border crossing -> Buje -> Rovinj

From the east:
Zagreb -> Rijeka -> Učka Tunnel -> Rovinj

Regular boat lines connect Trieste and Grado (Italy) with Rovinj www.adriatica.it, daily excursion lines to Venice, organized by tourist agencies.