The Pozo da Serra is located on the Eo river, shortly after its source in the Fonteo area. The waterfall is 8 to 10 metres high, although its height is somewhat affected by the Muiño dam.

To get there we must follow the road that goes from O Fontao to Cubilledo and, after crossing the bridge over the Eo river, we will turn off towards San Paio. From there we will follow a path that will take us to a restored mill and, next to it, the waterfall.