The Pinnacles, Western Australia, are a group of spiky limestone rock formations. They’re for Becky’s spiky squares, although some are spikier than others.
Spiky limestone
Places in Australia waiting for your "G'day"
Places in Australia waiting for your "G'day"
The Pinnacles, Western Australia, are a group of spiky limestone rock formations. They’re for Becky’s spiky squares, although some are spikier than others.
Underdown 
ooh how fascinating. I am guessing the surrounding soil was eroded away thousands of years ago?
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You are correct. It was actually the sea, which is now about 6km away, I think.
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