How did Perseus get directions to go to the gorgons?

Perseus received directions to the Gorgons from the Graeae, three old sisters who shared one eye and one tooth among them. He encountered them while seeking information on how to find Medusa and the other Gorgons. By stealing their eye, he forced them to reveal the location of the Gorgons in exchange for its return. This cunning strategy allowed him to proceed on his quest.