A Mazoca waterfall is on the River Sesín, a tributary of the River Eume which it meets at the foot of Caaveiro monastery. 

To get to the waterfall, head to the River Sesín Ethnographic Park, in A Capela in the Fragas do Eume Nature Park. There you can stroll through a thick native forest and see many restored mills. Very close at hand is the start of the path leading to the waterfall.

Before it joins the Eume, the Sesin flows over several waterfalls, the highest of which is the A Mazoca which is roughly 10 metres high.