The waters of Styx

The Waters of Stygos are the headwaters of the river Krathis in Helmos of the Province of Kalavrita in Achaia, at an altitude of 2,100 meters. According to mythology, Styx was an Oceanida who had her palace in Tartars and is guarded day and night by sleepless dragons. It was believed that the headwaters came from there, from the Tartars and the palace of Styx.

Styx was on the side of Zeus in the Battle of Titan, when he fought his father Kronos. Her children were the State, Violence, Eagerness and Victory. In the waters of Stygos all the gods swore, even the Sun: it was the greatest oath a god could make and there, the gods served their sentence when they were punished. It was said that any living thing that drank from its water died, and any metal dipped in its water melted. There, Achilleas was drowned by his mother Nereid Thetis and became invulnerable, but kept him by the heel,which remained the only vulnerable point in his body.