thinned forest and vegetation in the valley of the source of the river zrmanja (velebit nature park, croatia)

thinned forest vegetation valley source river zrmanja velebit nature park croatia prorijedjena suma vegetacija dolini izvora rijeke zrmanje prirode hrvatska landscape travel outdoor beautiful green scenery mountain tree scenic wilderness hiking tourism natural view summer background environment peak path adventure hike rock panorama hill mountains wild season vacation countryside spruce rocky scene outdoors trail stone protected national beauty woods foothill rural high explore climbing wood country panoramic peaceful