Thyamis

The Thyamis or Thuamis,or Thyamus,(Θύαμις, also known as Glycis or Kalamas) is a river in the Epirus region of Greece. It flows into the Ionian Sea. The name of Chameria/Greek:Tsiamouria (and the former Cham minority in Greece) derives from the river's name.Thyamis in ancient Greece was mentioned by Pausanias forming the boundary between Thesprotis and Kestrine.

Some Renaissance scholars believed that the English River Thames owed its name to the River Thyamis, as early Celtic tribes are thought to have migrated from the Epirus region to England. While this belief influenced the modern spelling of the English river's name, it is no longer regarded as credible.

Geography
The river begins in the mountains next to the Albanian border. It flows east of Delvinaki, underneath the GR-28/E852. The future Ionia Odos (GR-5). The river enters a forested area and within the river is the GR-6, the old highway connecting Igoumenitsa, Ioannina and Larissa in Thessaly. The river enters an area filled with some gorges along with south of Filiates and under the GR-19, it empties into the Ionian sea between Igoumenitsa and Sagiada or the closest proximity with the Albanian border