Satellite map of Castalian Spring
The Castalian Spring, in the ravine between the Phaedriades at Delphi, is where all visitors to Delphi — the contestants in the Pythian Games, and especially suppliants who came to consult the Delphic Oracle — stopped to wash their hair; and where Roman poets came to receive poetic inspiration.
Latitude: 38° 28' 59.00" N
Longitude: 22° 30' 20.00" E