🇱🇾 Libya · Submerged site
Tocra (Taucheira) – Cyrenaican Submerged Port
Archaic Greek to Fatimid (620 BCE – 10th c. CE) · Greek Cyrenean / Roman / Byzantine
Cyrenaican grain port founded 620 BCE — ashlar quay and slipways now reef-submerged with Justinian fortress above.