happy man with climbing helmet on cloud covered mountain summit of mytikas mount olympus, greece. greek flag on top

man summit hiking mount olympus climbing person mitikas achievement freedom wind waving greek flag banner peak mytikas greece mountaineering skala helmet rear view fog mountain fresh air outdoor sport adventure wanderlust macedonia mountains pieria clouds ridge thessaly litochoro stefani skolio biosphere reserve national park olympos europe summer foggy ridges ascent spilios agapitos unesco world heritage