The Mazo de Santa Comba leads to last times, in which man and river lived united. Old complex of industrial archaeology, in which the the water, by means of an ingenious architecture of canalizations, gives force to mallot, saw, forges, dynamo, mill... The water is again protagonist in the Conxunto Etnográfico da Fervenza, whose origins go back to century XVI. Mill, mallot, pesqueira, rodicio, looms, taller de zoqueiro and a spectacular water cascade, conforms the visit guided this set.