Lerna 2.36

In classical Greece, Lerna was a region of springs and a former lake near the east coast of the Peloponnesus, south of Argos. Its site near the village Mili at the Argolic Gulf is most famous as the lair of the Lernaean Hydra, the chthonic many-headed water snake, a creature of great antiquity when Heracles killed it, as the second of his labors. The strong Karstic springs remained; the lake, diminished to a silt lagoon by the 19th century, has vanished.Lerna is notable for several archaeological sites, including an Early Bronze Age structure known as House of the Tiles, dating to the Early Helladic period II .MythosThe secret of the Lernaean spring was the gift of Poseidon when he lay with the "blameless" daughter of Danaus, Amymone. The geographer Strabo attests that the Lernaean waters were considered healing: Lake Lerna, the scene of the story of the Hydra, lies in Argeia and the Mycenaean territory; and on account of the cleansings that take place in it there arose a proverb, 'A Lerna of ills.' Now writers agree that the county has plenty of water, and that, although the city itself lies in a waterless district, it has an abundance of wells. These wells they ascribe to the daughters of Danaus, believing that they discovered them... but they add that four of the wells not only were designated as sacred but are especially revered, thus introducing the false notion that there is a lack of water where there is an abundance of it.