Biserujka Cave is found on the island of Krk 300 meters north-west of the Rudine village. The cave welcomes tourists where they can see decorations – calcareous sinters, stalagmites, and stalactites according to a speleological classification, it represents an easy cave with an entrance that lead into a gently sloping cave channel. Underground spaces consist of: Mouth, Balcony, Shaft, hall , Northern Channel, Arched Hall and Cypress Hall.