arid Australia brown bush bushland central-Australia desert-country desert-region dry height high hot inland outback outcrop ridge rocks rocky rough rugged scrub shrubbery sunlight sunshine terrain textures trees vegetation abstract appearance Australian blue central coloring colors colouring colours contrast contrasting descriptive distance distant drought dry-brown-land far foliage gravel ground light outcrops perspective perspectives sky access-denied barricade barrier beach beach-path beach-sands blockade blocked closure dry-sand dune-vegetation emergency-mesh erected erosion erosion-control fenced footprints greenery netting obstacle outdoors outside plants public quiet red sand sand-tracks sandy seashore seaside secured shadows shore slope sloping summer sun tracks uneven warm hills hilly road