The South Euboean Gulf is a gulf

Headlands and bays

Headlands and bays are two related features of the coastal environment.- Geology and geography :Headlands and bays are often found on the same coastline. A bay is surrounded by land on three sides, whereas a headland is surrounded by water on three sides. Headlands are characterized by high,...

 in Central Greece

Central Greece

Continental Greece or Central Greece , colloquially known as Roúmeli , is a geographical region of Greece. Its territory is divided into the administrative regions of Central Greece, Attica, and part of West Greece...

, between the island of Euboea

Euboea

Euboea is the second largest Greek island in area and population, after Crete. The narrow Euripus Strait separates it from Boeotia in mainland Greece. In general outline it is a long and narrow, seahorse-shaped island; it is about long, and varies in breadth from to...

 and the Greek mainland. With a total length of approximately 50 km and a width of 10 to 20 km, it stretches nearly diagonally from northwest to southeast, from the Euripus strait, which connects it to the North Euboean Gulf, to the Petalies Gulf

Petalies Gulf

The Petalies Gulf is a gulf that connects with the South Euboean Gulf near Agia Marina and to the north. The total length is approximately 50 to 60 km long from north to south and is approximately from 6 to 8 km wide in the north to about 40 to 50 km in the south from east to west...

 near Agia Marina in the south.

Bays by the gulf

• Agion Apolstolon Bay, south
• Oropos Bay, southwest
• Aliveri Bay, north
• Boufalo Bay, northeast
• Almyropotamos Bay, northeast

Places by the gulf

• Sessi Beach, south
• Varnavas Beach, south
• Kalamos Beach, southwest
• Nea Palatia
  Nea Palatia
  Nea Palatia is a community in East Attica, Greece. Since the 2011 local government reform it is part of the municipality Oropos, of which it is a community....
  
  , southwest
• Skala Oropou
  Skala Oropou
  Skala Oropou is a community in East Attica, Greece, on the South Gulf of Euboea, due north of Athens. Since the 2011 local government reform it is part of the municipality Oropos, of which it is a community....
  
  , southwest
• Chalkoutsi, southwest
• Pigadaki
  Pigadaki
  Pigadaki , older form: Pigadakion may refer to several places in Greece:*Pigadaki, a subdivision of Sparto in the municipality of Amfilochia in the Aitoloakarnania prefecture...
  
  , souhtwest
• Dilessi, west
• Paralia Achlidas, west
• Faros, west
• Chalkida, northwest
• Eretria
  Eretria
  Erétria was a polis in Ancient Greece, located on the western coast of the island of Euboea, south of Chalcis, facing the coast of Attica across the narrow Euboean Gulf. Eretria was an important Greek polis in the 6th/5th century BC. However, it lost its importance already in antiquity...
  
  , northwest
• Amarynthos
  Amarynthos
  Amarynthos , locally called Vatheia , is a coastal town and a former municipality in Euboea, Greece. Since the 2011 local government reform it is part of the municipality Eretria, of which it is a municipal unit. Its 2001 population was 4,141 for the town and 7,356 for the municipal unit...
  
  , north
• Aliveri
  Aliveri
  Aliveri , is a town in the Greek island of Euboea. It is part of the municipal unit Taminaioi, and the seat of the municipality Kymi-Aliveri. Aliveri is linked by the GR-44 . Aliveri lies next to the South Euboic Gulf...
  
  , north
• Panagia, northeast