The Caletes or Caleti (Latin: Calētēs or Calētī) were a Gaulish or a Belgic tribe of present-day Normandy. They occupied a section of the coast, between the Sequana and the Phrudis rivers.
Harfleur (Caracotinum) was their principal port.
This map of Northern Gaul shows the exact position of the Caletes on the southern shore of the English Channel: [1]
References
Caletes Wikipedia(Text) CC BY-SA