beach coast coastline color colored colors colour coloured colours distance distant expanse footprints growing growth industrial activity industrial area Jetty layers levels low tide mangroves natural ocean outcrop pebbles people plants pollution prints receding receding tide recreation relaxing rock formations rocks rocky rough sand sandy sea seashore seaside shade shadows shapes ships shore shoreline Sizes stones stony strolling sunlight sunshine tidal tides variety waders wading water waterline angles arid Australia barren bedrock blue-sky brown bush bushland clouds crest drought drought-stricken dry geological-formation geology height high hill hot inland isolated landscape outback outcrops remote ridge rugged scrub shrubbery shrubs sky slopes sparse stone terrain textures trees vegetation Alice-Springs buildings central-Australia gullies homes mountain-range ridges mountains pebble rock wall erosion volcanic blue green nature jordan mountain national park sandstone holiday national park bridge desert wadi rum break bright calm coastal fresh peaceful reflective relax seawater summer sun sunny tranquillity warm cliffs Red Rocks spring Utah white