We used to live on the side of a wooded valley here in Wales.
There was a small stream at the bottom of the garden you could paddle in during the summer.
Every winter after heavy rain, it morphed into a raging torrent 5 times its original width and 6ft deep.
So much so that the roar of it kept you awake at night!!! :scare:
Lost a lot of garden due to erosion.
It was absolutely UNBELIEVABLE the amount of water that was rushing past!