Mount Olympus is the highest mountain in Greece, located in the Olympus Range on the border between Thessaly and Macedonia, between the regional units of Larissa and Pieria, about 80km southwest from Thessaloniki. Olympus is notable in Greek mythology as the home of the Greek gods, on Mytikas peak. It is also noted for its exceptional biodiversity and rich flora. It has been a National Park, the first in Greece, since 1938. It is also a World Biosphere Reserve.