Village where the "Spring of the Hydra" is still pointed out today. Mythologically it was in the swamps of Lerna that Heracles, as one of his Labors, killed the many-headed Hydra. The bottomless Alcyonian Lake, through which the god Dionysus gained access to the Underworld to rescue his mother from the dead, was also in the vicinity of Lerna.

Handy sign for heroes or gods seeking Hydras or bottomless lakes. (zoom)