If what you are looking for is the magic of fairies and elves traveling through the forests and following the course of the rivers, something may surprise you and that is that the exuberant life of these places transports the protagonism of a story in a soft enchantment.
Places like Santo Estevo do Ermo, Poza da Onza, Fervenza del Escouridal, Souto da Retorta and many others, some of which are still almost secret, you can easily explore them from home.