man trekking on mystical hiking trail leading to mount olympus (mytikas, skala, stefani) in mt olympus national park

mount olympus greece mountaineering man climbing hiking skala steep helmet front view fog mountain freedom fresh air breath outdoor sport health adventure wanderlust unesco world heritage macedonia mountains summit pieria clouds ridge thessaly mytikas greek gods litochoro stefani skolio trekking biosphere reserve national park olympos trail europe travel summer foggy low visibility mystical alpine cliff tourism happy