The Plateau of the Muses is dominated by the refuge “Christos Kakalos” at an altitude of 2,650 meters. Its name honours the first guide of Olympus and conqueror of the mythical mountain, Christos Kakalos. Kakalos accompanied the first conquerors of Olympus, the Swiss Frederic Boissonas, a famous photographer and publisher, and Daniel Baud-Bovy, author and art critic, who reached the highest peak of Olympus on August 2, 1913.