aerial aeroplane airplane Alice-Springs angles appearance arial below bushland central-Australia country-side distance distant expanse flying formations from-above geologically-significant height high isolated landscape lined lines looking-down mountainous movement moving outback panoramic panoramic-views remote rough rugged rural scenery scenic shadows sightseeing sparse sunlight sunshine terrain travel travelling undulating valleys vegetation aircraft anchored balloon cable checks circular colors colours control controlled duty-pilot engineers fabric filled flight-operation gondola helium helium-balloon inspected inspections large limited mesh metal-cable metal-line monitored monitoring motion net passengers pilot piloted registered ride safe safety secure secured sights Singapore tethered tourists views weather-limits wind-limits ancient Ayers-Rock Kata-Tjuta Olgas pitted rock solid Uluru weather-beaten weathered