Most stations in Athens broadcast from Mount Ymittos to the east of the city (but west of the Athens International Airport in Spata). A smaller minority of stations operate from Mount Parnitha, northwest of the city, or Mount Egaleo, bordering the west of the city. Many stations also have repeaters on the island of Aegina, south of Athens in the Saronic Sea, to cover coastal regions of Athens, including Glyfada and Vouliagmeni, which due to the topography of the region, cannot receive clear signals from the other locations.