It's apparently 260 million years old in the Permian Period
i denna
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The large Kiama blowhole was formed by a dyke in the rock, it was eroded by wave action, the rock then collapsed, and the tunnel formed
5000 meters ....
Kiama Blowhole, on the New South Wales coast, was discovered by George Bass on 6 December 1797.
valcanic rock , basalt
George Bass, who was the first to discover the famous Kiama blowhole, on 6 December 1797.
Kiama Knights was created in 1914.
Kiama Light was created in 1887.
Municipality of Kiama was created in 1859.
HMAS Kiama ended on 1946-04-03.
HMAS Kiama was created on 1944-01-26.