limestone rocks and karst mountain landscape - northern velebit national park, croatia (vapnenacke stijene)

environment destination vapnenacke nacionalni background wilderness limestone landscape planinski beautiful adventure mountains viewpoint panoramic undefined mountain northern national krajolik sjeverni hrvatska vacation panorama climbing outdoors trekking velebit croatia stijene outdoor scenery tourism natural country explore nature travel hiking scenic europe forest spring valley famous season rocks karst krski rocky stone scene cliff trail climb snowy park view rock peak hill tree hike high wood path fir