We found huge sections of the beach with these rock patterns
We went for a lot of beach walks on the east coast of Tasmania, and we came across this phenomenon more than once. It’s rock, but it looks like paving stones on a street.
These are not separate stones! It is one big rock!
The ocean and the wind does creates a nearly perfect grid system that makes the rock look man-made…but it’s all Mother Nature. It’s called tessellated pavement.
The grid lines are almost perfectly straight
The Parallel Life 