Area of Cave park Grabovača is charactarized by landscape values that make it a recognizable mountain area of this part of Lika. On a relatively small space of the park, 9 speleological objects are protected by the provisions of the Nature Protection Act. Caves Samograd, Medina and Amidžina are also individually protected (1964) by the Nature Protection Act in the category of geomorphological monuments of nature.
Samograd cave is located on the eastern slopes on the Garbovača hill. The entire cave was formed in the upper limestone along the main cracks of the N-S direction. Most of the cave surface is covered by a thick dripstone bark, covered by layers of rocks and soil. There are two dripstone bridges in the cave, dripstone cave flows, conic stalagmites and stalactites.