hikers on top of rock formation with bushes

europe portugal beiras estrela vacation travel tourist landscape bucolic countryside rustic bush meadow sward green tranquility hill mountain highlands slope ground boulder stone flinty sunny charming terrain footpath hike trek crosscountry track trail mountaineering thicket dirt trip walk clump rock path way escarpment romantic steep wilderness leafy branches people hiker hikers top formation bushes couple covered day serra highest range continental astonishing scenery