With the largest coral reef ecosystem in the world, the Great Barrier Reef is one of seven natural wonders of the world and a UNESCO World Heritage Site.
원문출처 : http://www.cnn.com/2016/06/28/travel/us-news-best-vacation-destinations-2016/index.html
원문출처 : http://www.cnn.com/2016/06/28/travel/us-news-best-vacation-destinations-2016/index.html