#renewableEnergy, ancient edition:
This is a tide driven mill in Hénan nearby Pont-Aven in Finistère in #Breizh from the 15th century.
When the water pushes out the dam, it drives a water wheel.
I took this video during my #tourDeNiu
https://de.wikipedia.org/wiki/Gezeitenm%C3%BChle_von_H%C3%A9nan

