Australias great barrier reef was buried squeezed and heated and reemerged over the last 400 million years to bring you the chillagoe limestone caves a short flight into the sparse outback reveals scenic wonders only a few get to see back in time only 190 thousand years 164 volcanoes at undara created rivers of lava that coalesced into spectacular underground tunnels this full day air adventure culminates in aerial views of the atherton tablelands and the great barrier reef as you return