Nature running its course. I live in the same state as The Twelve Apostles [1], a famous group of limestone stacks on the coast of Victoria, Australia, south-w

Nature running its course. I live in the same state as The Twelve Apostles [1], a famous group of limestone stacks on the coast of Victoria, Australia, south-west of Melbourne. Just up the road, there is a formation that was called London Bridge - a limestone formation protruding out from the land, with two stacks, making it a double-span bridge. Then one day in 1990, the bridge section adjoining the land collapsed. Two sightseers were on it at the time, though mercifully not on the part that collapsed; they were rescued by helicopter after a few hours. It just so happened that this collapse occurred during the high school year when we were studying limestone cliff formations in geography class. I remember our teacher impressing upon us that it was a geologically regular and normal occurrence, but infrequent in human life terms, so we were lucky to be able to observe the event just at the time we were studying the phenomenon. Since then they've called it London Arch [2]. [1] https://explorethegreatoceanroad.com.au/the-twelve-apostles-in-australia/ https://explorethegreatoceanroad.com.au/the-twelve-apostles-... [2] https://en.wikipedia.org/wiki/London_Arch https://en.wikipedia.org/wiki/London_Arch