Biokovo is second-highest mountain in Croatia. Its highest peak is Sveti Jure (Saint George), at 1762 meters. The 196 square kilometers of its area is protected as a nature park. When the weather is very clear, from the top of Biokovo it is possible to see Monte Gargano in Italy, which is 252 km away.

In Dalmatia, the Dinarides fork into a number of parallel chains. The highest is the one that constitutes the natural boundary with Bosnia and Herzegovina and consists of Ilica, Dinara, Troglov and Kamešnica. A second line runs through Dalmatinska Zagora in which the highest are Promina, Mosea and Svilaja.

The most important feature of these mountains is that the highest mountain regions here do not have the form of a ridge but of a high plateau (up to about 1700 metres), with a very complicated relief, with many gorges and peaks, caverns and spurs. The edges of the plateaux often finish in huge vertical cliffs