Once upon a time there were five nymphs who lived on the shores of the river Achelous. They were party girls and decided to host a great feast. No expense was spared; they sacrificed ten bulls and invited all the rural gods to their festal dance. But they made one huge crucial mistake! They forgot to invite Achelous himself, their mighty neighbour. He was furious. He swelled up with rage and sent his horrible flood waters sweeping all over the land. Woods and fields were swept away, along with the nymphs and the remains of their banquet. Everything was carried out to sea where it formed the Echinades. Only when they became islands did the nymphs remember mighty Achelous, but it was too late.