Acheron Cocytus and Phlegethon both flowed. The Roman poet Virgil called it the principal river of Tartarus, from which the Styx and Cocytus both sprang. The newly dead would be ferried across the Acheron by Charon in order to enter the Underworld. The Suda describes the river as "a place of healing, not a place of punishment, cleansing and purging the sins of humans". According to later traditions, Acheron had been a son of Helios and either Gaia or Demeter, who had been turned into the Underworld river bearing his name after he refreshed the Titans with drink during their contest
Tartarus the "Iliad" (c. 700 BC), Zeus asserts that Tartarus is "as far beneath Hades as heaven is above earth." While according to Greek mythology the realm of Hades is the place of the dead, Tartarus also has a number of inhabitants. When Cronus came to power as the King of the Titans, he imprisoned the one-eyed Cyclopes and the hundred-armed Hecatonchires in Tartarus and set the monster Campe as its guard. Zeus killed Campe and released these imprisoned giants to aid in his conflict with the Titans. The gods of Olympus eventually triumphed. Kronos and many of the other Titans