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
i denna
5000 meters ....
Kiama Blowhole, on the New South Wales coast, was discovered by George Bass on 6 December 1797.
The Kiama Blowhole in New South Wales, Australia, is estimated to be thousands of years old, formed through the erosion of the coastline by the ocean over time. The blowhole itself is a natural rock formation that produces a spectacular water spout when waves crash into the shore and air is forced through a small opening in the rocks.
valcanic rock , basalt
It's apparently 260 million years old in the Permian Period
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.
Sandra McCarthy
Kiama railway station was created in 1893.