Events Croatia Opatija during Advent combines holiday shine and the scent of the sea: from November 28, 2025, to January 6, 2026, the city glows at Mrkat, Slatina, Summer Stage, and along Xmas Street. A skating rink, Winter Garden at Šporer, chocolate workshops, a Christmas fairy tale on Učka, and New Year's Eve with music at the market await you.