Earth pyramids are rare natural phenomenon. They are located alongside old road from Foca to Miljevina, in village Danicici at location Sljivovice. They developed from influence of linear and surface erosion on rocks and soil with different structure. Pyramids are composed of sandy clay, from which soft material has been carried away gradually, and what remained are some ridges built of solid rocks. It is those solid parts that saved more minute material below them and created those rare shapes.
Samar at Bistrica river
Samar on Bistrica is a specific geomorphological phenomenon. It represents a river, tunnel cave, 100 meters long and about 30 meters high. Through this cave passes Bistrica river, which is at that part called Dobropoljska river.
Crag of Sijeracke stijene
Sijeracke stijene crag stretches along road Sarajevo-Foca, near Sijerca, between Dobro polje and Miljevina. At this part, Bistrica has graved a steep and about 4 kilometers long crag. It is full of various speleological forms, and cave Kuk is especially distinguished.
Otesa river
Otesa river is the last right tributary of Bistrica, before its estuary into Drina river. It springs in north waterproof slopes of Zelengora, and then passes through more resistant group of rocks where it had graved antecedent valley. It is 15 kilometers long.
Water spring and cave Skakavac
Spring and cave Skakavac, 912 meters long, are on the right bank of Otesa river, at 690 meters above sea level. Above the cave, there is over one hundred meters high rock. Water from the cave flows out of waterfall, which is about 60 meters high.
