Blue Cave on the island of Biševo (Photo: Dalibor Urukalovic/PIXSELL) Blue Cave on the island of Biševo (Photo: Dalibor Urukalovic/PIXSELL)

The area of the Vis archipelago consists of magma formations which includes the islands of Jabuka, Brusnik, Biševo, Ravnik and Palagruža. With Palagruža believed to be the oldest island of the Adriatic.

The Vis archipelago has been protected by Croatia's Nature Protection Act.

With sites such as the Blue cave, Medvidina cave and caves on the island of Ravnik, as well as the Stiniva and Ravnik bays, the archipelago is noted for its massive potential for geotourism.

This is Croatia's second UNESCO Geopark, the first being the Papuk Mountain rage located in eastern Croatia, which is known for its extraordinary geological and biological diversity and valuable cultural heritage.

Source: HRT