Q:Gulf of Patras - The Gulf of Patras (Greek: Patraikos Kolpos) is a branch of the Ionian Sea. On the east it is closed by the Strait of Rion between capes Rio Greece and Antirrio near the Rio-Antirio bridge. On the west it is bounded by a line from Oxeia island to Cape Araxos. It is 4050 km long 1020 km wide and has an area of 350400 km.The Port of Patras lies to the southeast and is the only major port on the gulf. Given a choice of categories company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, the text refers to which one?
A:
Natural Place