The last unesco card in my collection is from Australia, the Shark Bay in Western Australia.
The card was sent by Heather "hmassese".
"At the most westerly point of the Australian continent, Shark Bay, with its islands and the land surrounding it, has three exceptional natural features: its vast sea-grass beds, which are the largest (4,800 km2) and richest in the world; its dugong (‘sea cow’) population; and its stromatolites (colonies of algae which form hard, dome-shaped deposits and are among the oldest forms of life on earth). Shark Bay is also home to five species of endangered mammals." - in: www.whc.unescoorg/en/list/578