The Castalian Spring

The servants wash before they enter

The Castalian Spring rises in a ravine below the Phaedriades, the cliffs above Delphi. Delphi was the great sanctuary of the god Apollo, a sacred place set apart for him.

In Ion, a play by Euripides, the temple-sweeper orders Apollo’s Delphian servants to wash at Castalia before they enter the god’s house. The water divides ordinary movement from sacred duty. They bathe first, then cross the threshold.

The order applies to the attendants who keep the sanctuary running. In the lines that survive, it does not name the Pythia, the priestess of the god. Pausanias, the ancient travel writer, later calls the same water sweet to drink and pleasant to bathe in. He does not state a rule for every visitor.

Where the name comes from

Pausanias gives three explanations of the name and settles none of them. The spring was named for a local woman called Castalia. Or it was named for a man called Castalius.

The third account comes from Panyassis, a poet who wrote an epic on the hero Heracles. In it, Castalia was a daughter of the river god Achelous. Pausanias quotes the lines: “Crossing with swift feet snowy Parnassus, he reached the immortal water of Castalia, daughter of Achelous” (Description of Greece 10.8.9).

Who else names it

Other ancient writers mention the spring too. The poet Pindar calls Apollo “you who love the Castalian spring of Parnassus” (Pythian 1.39 to 40). He wrote within a generation of the events that Herodotus records at the spring.

The geographer Strabo wrote later still. He says that the Delphians of his own day lived clustered “close to the temple, round the Castalian fountain” (Geography 9.3.3). Earlier, he says, they had lived on the height of Lycoreia above the sanctuary. By his time they had moved down around the spring.

What Herodotus records there

The historian Herodotus places a hero shrine at the spring itself. A hero shrine was a place of worship for a hero. The precinct, or sacred enclosure, of the local hero Autonous, he writes, lies “near the Castalian spring, under the Hyarapean Peak”. It is separate from the precinct of the hero Phylacus, which lies further off, by the road above the shrine of Athena Pronaea (Histories 8.39).

Herodotus gives the two heroes as part of the Delphians’ own account of a rockfall. The falling rocks broke a Persian attack on the sanctuary. He adds that the fallen rocks could still be seen in the precinct of Athena Pronaea in his own day.

The first fountain house

The first fountain house built to draw the water dates to 600 to 590 BC. A fountain house was a stone building that collected spring water so people could use it.

This one had a rectangular basin with a central chamber and two side chambers. Half-columns set into the wall decorated it. Water came out through four or seven bronze lion-head spouts. It stood on the road up to Apollo’s precinct. It served the purification of both priests and the faithful, the washing that made them clean before they approached the god.

The second fountain and the spring today

A second fountain replaced the first by about the first century BC. It was cut whole from the natural rock some fifty metres further on. It had a ten-metre basin fed by seven metal spouts, and eight steps led down into a paved court.

The ancient fountain houses were restored in 1959 and 1977, and a smaller modern outlet still draws from the same source today.

The two structures tie the spring of the poems to real ground. They do not bring back every ancient ritual. Channels, basins and steps show that people controlled the water for use. The texts explain why it mattered to come to Apollo clean. The water still leaves the Phaedriades and runs toward the sacred road of Delphi.