The Wollumbin Caldera

The Wollumbin Caldera is one of the three top biodiversity hotspots in Australia. It covers an area of approximately 1500 sq km and supports around 1250 types of plants. 

The Caldera includes a high diversity of ecosystem types because it is in an area where temperate and sub-tropical bio-geographic areas, both terrestrial and marine, converge. 

The area supports one of the highest vertebrate biodiversities of any Australian region as well as one of Australia‚Äôs highest concentrations of threatened plants. It is so rich in significant native flora and fauna that it has received World Heritage status. 

The area includes the rainforest areas of the Border Ranges, and Nightcap National Parks, as well as Mebbin and Mooball National Parks and Limpinwood and Numinbah Nature Reserves.

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