lac bleu in arolla, switzerland.le lac bleu d'arolla val d'herens..val d'hérens.le lac bleu

outside outdoors nature trees foliage beautiful pretty hill outdoor park forest environment alp evolene afternoon alpine alps arolla autumn blue day europe european fall hills la gouille lac bleu lake landscape location mount mountain mountains natural place pond reflection scene scenery scenic season seasonal swiss switzerland tourism travel val 039 herens valais view water