Often referred to as Calibia by European writers,is a coastal town on the Cap Bon peninsula, Nabeul Governorate
in the far north-eastern part of Tunisia. Its sand beaches are considered some of the finest in the Mediterranean.Known in
Roman times as Clypia or Clupea,the town was founded by the Carthaginians as the fortified town of Aspis in the 5th century BC.

Clupea was also the seat of an ancient Christian bishopric.
At the Council of Carthage (411), which brought together Catholic and Donatist bishops, Clypia was represented by Bishop Leodicius and the Donatist Geminius.