You can purchase tickets for all five days (12 euros) or for just one day (4 euros) through the Mojekarte.hr system or at the box office at the entrance to the Small Summer Stage Opatija.
Tickets

You can purchase tickets for all five days (12 euros) or for just one day (4 euros) through the Mojekarte.hr system or at the box office at the entrance to the Small Summer Stage Opatija.