Sand dredging vessel working on a coastal rejuvenation project with an urban city skyline in the distance

gold coast queensland seaway the spit replenishment waterways commercial vessel coastal protection shoal sand dredging environmental sensitive coastal industrial shipping channel 4k resolution city harbor drone unique view vessel urban ocean floor sea bed reef underwater sea grass enviroment ocean conservation pollution marine plant habitat ecosystems marine animals aquatic plants infrastructure erosion construction rejuvenation government project pumping silt cargo extraction dredge engineering aerial