The Pico da Frouxeira is a place steeped in history. This 427-metre peak was once the site of the Castelo da Frouxeira. Today, only a few remains and marks in the granite rocks reveal where the walls of this ancient castle stood.

The fortress belonged to the Mariscal Pardo de Cela, a legendary and controversial mediaeval Galician nobleman. The rocky platform on which the impenetrable fortress stood, gazes down over the Foz region and the coast to the north-east, Alfoz and O Valadouro to the west, and the green, fertile San Martiño de Mondoñedo valley at its feet.