zabala mountain shelter on peñalara peak, sierra de guadarrama, madrid, spain.

geology wilderness rock mountain terrain landscape valley cliff hill wildlife ridge adventure sea nature zabala shelter peñalara peak sierra guadarrama madrid spain recreation destination journey countryside travel adventure slope boulder geomorphology scenic valley formation geology scenery rock rocky peak steep ecosystem mountaineering range rugged granite spain madrid guadarrama peñalara zabala sunny summer refuge shelter tourism alpine environment europe grass hiking hill land landscape mountain national park nature outdoor path segovia sky