Ancient rocks
Now we're talking geology over a billion years old. This natural opening known as Nature's Window in the Kalbarri National Park has been eroded by wind, providing an amazing view over layered limestone cliffs and gorge.Tessellated pavement
These amazing layered sedimentary rocks near Port Arthur look like Inca paving stones, having eroded over millennia into oblong blocks about 40cm high. Australian geology/geography is really interesting and varied.
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