mystical forest at rio de mouros pathway in condeixa, coimbra portugal

green foliage hiking path nature trail rio mouros ancient trees atmospheric scene autumn woods coimbra condeixa dense undergrowth fallen leaves forest atmosphere environment exploration floor landscape scenery shade shadows vegetation wandering wilderness moss leaf litter mossy bark mystical natural arch corridor tunnel walk oak portugal rocky tree canopy roots silhouettes trunks twisted branches woodland flora pathway portugal winding moss-covered creating enchanting beneath day