The fortified settlement of Lygia extends on the eastern part of the homonymous peninsula in the Municipality of Igoumenitsa, in the area of the old estuary of Kalamas River. The settlement is probably identified with ancient Toroni, a city that was part of the “Peraia" of Corcyra, the extensive colonial establishment founded by Corfiots on the coast of Thesprotia during the classical period, according to Thucydides. It consists of three successive fortified sections, called “Castles” A, B and C, surrounded by strong –for the most part– isodomic walls of the 5th and early 4th centuries BC. Parts of the fortification walls were probably repaired or reconstructed during the late Classical and Hellenistic periods, while there are some later reconstructions, dated maybe in the Roman period. Apart from that, there is scant information regarding the urban planning of the settlement due to the absence of any archaeological research on the few and unidentified building remains, which are now visible at the site. “Castle” A is the easternmost and smallest of the three castles.
The surrounding wall is reinforced with semicircular or rectangular towers and with a bailey on the western side. There were four gates granting access to the castle with the probably arched main gate located on the eastern side between a rectangular and a semicircular tower. Visible today inside the fortification are scattered building remains and a central road, 5m wide, which ran through the settlement from east to west.
The fortification of “Castle” B, which lies west of “Castle” A, was reinforced by indentations and rectangular or semicircular towers. To the south there was probably a gate leading to the coast, while on the eastern side some reconstructions can be detected, possibly dating in Late Antiquity.
The wall of the westernmost “Castle” C is a shoddy construction preserved in very fragmentary condition. Inside the wall there are almost no visible architectural remains. In one of the bays of the northern fortification there is a partly preserved isodomic wall, which probably belonged to ancient port facilities.