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"The sanctuary of Olympia spreads around the green wooded feet of the Kronion hill, where the rivers Alpheios and Cladeos meet. The valley amongst the two rivers was in ancient times full of wild olive trees, poplars, oaks, pines and plane trees and it was these trees that gave the centre of the sanctuary the name Altis, meaning alsos (grove).
The Altis is the name given to the area in Olympia that comprises the main religious buildings, temples and votive offerings of the sanctuary. Out of the enclosure were the auxiliary buildings, priests' houses, baths, the areas for the preparation of the athletes, guest houses along with other buildings. "