The traditional star party called Petrova gora Star party is organized by the astronomical society “Beskraj” from Zagreb. The first party was organized in 1999. By 2006 it was organized at Japetić, but because of the increase of light pollution it was moved to Petrova gora. The sky at Petrova gora is one of the darkest in Croatia (limit magnitude 6.5) and the road leading to the observation site is very accessible. Nearby, at a 5-minute car ride, there is a Hunting lodge Muljava where you can book a room.