On the N-550 road between Pontevedra and Caldas de Reis, in the vicinity of Barro, there is a sign for the entrance to the River Barosa Nature Park, which is part of the PR-G 105 Sendeiro dos muíños do Barosa trail and where you will find this waterfall and a collection of 17 mills.  

The waterfall is on the River Agra or Barosa, a tributary of the River Umia, and flows over a sizeable drop of 30m in several steps and falls.