Passage 2.25.9
καταβάντων δὲ ὡς ἐπὶ θάλασσαν, ἐνταῦθα οἱ θάλαμοι τῶν Προίτου θυγατέρων εἰσίν· ἐπανελθόντων δὲ ἐς τὴν λεωφόρον, ἐπὶ Μήδειαν ἐς ἀριστερὰν ἥξεις. βασιλεῦσαι δέ φασιν Ἠλεκτρύωνα ἐν τῇ Μηδείᾳ τὸν πατέρα Ἀλκμήνης· ἐπʼ ἐμοῦ δὲ Μηδείας πλὴν τὸ ἔδαφος ἄλλο οὐδὲν ἐλείπετο.
Upon descending toward the sea, there are located here the chambers of the daughters of Proetus. Returning back to the main road, turning left, you will reach Medeia. They say that Electryon, father of Alcmene, ruled in Medeia. In my time, however, nothing of Medeia remained except the site itself.