As beautiful as it is threatened, the Great Barrier Reef is one of the natural wonders of the world. #WorldOceansDay http://on.natgeo.com/2rGUh7k pic.twitter.com/VplSermV49

As beautiful as it is threatened, the Great Barrier Reef is one of the natural wonders of the world. #WorldOceansDay http://on.natgeo.com/2rGUh7k  http://pic.twitter.com/VplSermV49

https://twitter.com/NatGeoTravel/status/872966646855553030