The 79-year-old Kadri Cerkini is now in a safe environment.
He was lost on Friday, December 27, from IKA L. Alexandra in Athens, where he had gone with his wife.
A few hours after the social alert was activated, the Silver Alert service received a call for his identification.
ELAS men found the elderly wandering in the Piraeus area.
His relatives were alerted and the elderly returned to his family.