Photo by @daviddoubilet A float plane carrying scuba divers soars across Hook and Hardy Reef on the Great Barrier Reef Australia, the worlds largest and iconic coral reef system. The #GreatBarrierReef stretches 1400 miles off #Australia #Queensland Coast. It is the largest single formation created by a living organism: the coral polyp. The barrier reef is a #UNESCO #WorldHeritageSite and like many other reef systems it is threatened by coral bleaching, ocean acidification, port expansions and development. With @natgeo @natgeocreative @thephotosociety #coralreef #beauty #plane #aerial #coralreef #peace #climatechange For #moreocean me @daviddoubilet by natgeo http://ift.tt/1Pf3uKx – Gatlinburg Garden Castle Rainbow Tower Library Imagination Station Temple Water Spirit Guardian Labyrinth Treasury Magic Healing