An area on the Peloponnesian Peninsula.
Aigialos stretched across the northern coast of the Peloponnesian Peninsula from Elis to Sikyon. According to the traveler-historian Pausanias,1 Aigialos once encompassed all the land that came to be known as Akhaia. A man named Aigialos was the eponymous founder of the territory, naming the city of Helike after his wife. Aigialos's name coincidentally means, coastland.
1. Pausanias, Description of Greece book 7.1.1 and 7.1.4
| References: Homer, Iliad book 2, line 575 |