Protected areas included in the park: Nera Gorge-Beușnița, Șușara Gorge, Ducin, Izvorul Bigăr, Izvoarele Nerei, Lisovacea, and Valea Ciclovei-Ildia.

Climate is a temperate continental, with moderate winters, warm summers, low thermal amplitude, with rich rainfall, with Mediterranean influences.

The hydrological network includes the Nera River and its tributaries: Coșava, Bănia, Beu, Ducin, Miniș, Nergana, Nerganița, Prigor, Rudăria, and Șopotu.

Species of mammals: brown bear (Ursus arctos), deer (Cervus elaphus), roe deer (Capreolus capreolus), gray wolf (Canis lupus), wild boar (Sus scrofa), European otter (Lutra lutra), lynx (Lynx linx), wildcat (Felis silvestris), pine marten (Martes martes), badger (Males males), pygmy shrew (Sorex minutus), Blasius's horseshoe bat (Rhinolophus blasii), and lesser mouse-eared bat (Myotis blythii).

Species of birds: golden eagle (Aquila chrysaetos), lesser spotted eagle (Aquila pomarina), common kingfisher (Alcedo athis), hazel grouse (Bonasa bonasia), hen harrier (Circus cyaneus), Eurasian eagle-owl (Bubo bubo), short-toed snake eagle (Circaetus gallicus), red-breasted flycatcher (Ficedula parva), European honey buzzard (Pernis apivorus), European nightjar (Caprimulgus europaeus), grey-headed woodpecker (Picus canus), Ural owl (Strix uralensis), corn crake (Crex crex), barred warbler (Sylvia nisoria), red-backed shrike (Lanius collurio), ortolan bunting (Emberiza hortulana), European roller (Coracias garrulus), Montagu's harrier (Circus pygargus), and middle spotted woodpecker (Dendrocopos medius).