Portugal's only national park splits naturally into two halves, and this route treats each one properly rather than rushing both in a single long day from Porto. The first two nights in Gerês cover the park's reservoir-and-thermal-spa side: the turquoise Tahiti pools on the Rio Arado, a waymarked loop from the Pedra Bela viewpoint, and, water level permitting, the resurfaced ruins of a village submerged in 1972. The final two nights in Ponte da Barca and Arcos de Valdevez cover the granite-village side to the west, where Soajo's 24 working espigueiros and Lindoso's larger cluster beside a 13th-century border castle are still part of daily rural life rather than a roped-off exhibit. None of this works without a car, since the park has no meaningful bus or train network between its villages, but the driving itself, on narrow roads through oak forest and granite scrubland, is close to a highlight in its own right.