The special nature reserve Gornje Podunavlje stretches on the left bank of the Danube, stretching for 64 kilometers. This area has a lowland topography with a flat and gently winding relief, abundant with meanders, backwaters, river dams and beams. Complexes of heath forests pass through areas of ponds, swamps, reeds and forests. Over 1,000 plant species, 60 species of butterflies, 55 species of fish, 11 species of amphibians, nine species of reptiles, 230 species of birds and 51 species of mammals can be found in this reserve. The reserve is a significant habitat for fish and birds, including white-tailed eagle (Haliaeetus albicilla) and black stork (Ciconia nigra), and also provides the largest habitat for deer (Cervus elaphus) and wild boar (Sus scorfa) in Serbia. Since 2017, Gornje Podunavlje has been included in the UNESCO World List of Biosphere Reserves as part of the “European Amazon” – the Mura-Drava-Danube Biosphere Reserve that stretches through Austria, Slovenia, Hungary, Croatia and Serbia.

Golija Nature Park is a special area rich in beech and spruce forests, high mountain meadows and pastures, sinkholes, coves, dry valleys, pits and caves. It also contains lakes and ponds, the largest of which are Košaninovo and Dajićko. The highest peak in this area is Jankov kamen, which reaches a height of 1,833 meters. Brook trout (Salmo trutta), brook barbel (Barbus balcanicus), white bream (Phoxinus phoxinus) and bream (Cottus gobio) can be found in mountain streams with clear and fast water. This area also provides protection to relict or endemic species of plants such as margrave’s yellow (Alyssum markgrafi), pancicia serbica (Pancicia serbica), lovage (Viola elegantula), Adamovic’s mulberry (Verbascum adamovicii) and poison ivy (Thymus adamovicii). Golia is a habitat for numerous reptiles and amphibians such as the alpine marmot (Ichthyosaura alpestris), the meadow frog (Rana temporaria), the hinge (Vipera berus) and the viper (Vipera ammodytes). The area is also home to over 150 species of birds and numerous species of mammals, including the little owl (Glaucidium passerinum), the cuckoo (Aegolius funereus), the skylark (Bonasa bonasia), the blind dog (Spalax leucodon), the alpine shrew (Sorex alpinus), the fox (Vulpes vulpes), wolf (Canis lupus) and brown bear (Ursus arctos). Golija, together with the Studenica monastery, was declared a UNESCO World Biosphere Reserve. In 2001, the Government of the Republic of Serbia declared Golija and Upper Danube as protected areas of category I protection, highlighting them as areas of exceptional international and national importance.