detail of huge reservoir in the spanish pyrenees, on the border of catalonia and aragon. panta d escalas swamp of stairs

aragon beautiful blue calm catalan catalonia clean clouds countryside environment escalas geography green journey lake landscape mountain mountainous mountains mountainside national natural nature outdoor panorama panoramic pantano park peaceful peak pond pyrenees relaxing reservoir scenery scenic sky spain spanish stairs swamp tourism tranquil tranquility travel trekking valley view visual water