The Golden Horn (Turkish: Altın Boynuz; Ancient Greek: Χρυσόκερας, Khrysókeras; Latin: Chrysoceras), also known by its modern Turkish name as Haliç, is a major urban waterway and the primary inlet of the Bosphorus in Istanbul, Turkey. It is a horn-shaped estuary that joins Bosphorus Strait at the immediate point where said strait meets the Sea of Marmara, thus forming a narrow, isolated peninsula, the tip of which is "Old Istanbul" (ancient Byzantion and Constantinople), and the promontory of Sarayburnu, or Seraglio Point.