The islands in question are uninhabited and of no great size.

There is also a story that Alcmaeon, son of Amphiraus, during his wanderings after the murder of his mother was bidden by Apollo to inhabit this spot, through an oracle which intimated that he would have no release from his terrors until he should find a country to dwell in which had not been seen by the sun, or existed as land at the time he slew his mother; all else being to him polluted ground.
Perplexed at this, the story goes on to say, he at last observed this deposit of the Achelous, and considered that a place sufficient to support life upon, might have been thrown up during the long interval that had elapsed since the death of his mother and the beginning of his wanderings.

Settling, therefore, in the district round Oeniadae, he founded a dominion, and left the country its name from his son Acarnan.
Such is the story we have received concerning Alcmaeon.
The Athenians and Phormio putting back from Acarnania and arriving at Naupactus, sailed home to Athens in the spring, taking with them the ships that they had captured, and such of the prisoners made in the late actions as were freemen; who were exchanged, man for man.

And so ended this winter, and the third year of this war, of which Thucydides was the historian..