One of the earliest cartographic sources for our land is a Roman map of the 4th century - preserved in its medieval copy of the 12th – 13th century, called Tabula Peutingeriana. It points out some of our famous cities: Anhialo (present-day Pomorie) and Apollonia (present-day Sozopol), and the road that connects them with the length of only 18 Roman miles (26.67 km). In reality the distance between Pomorie and Sozopol measured by the coast, is about 51 km, ie 34.42 Roman miles.
Insufficient distance between the cities Anhialo and Apollonia is compensated in different ways. The best solution for this problem is that due to the missing knowledge of the local landscape by the end compilers of the map in distant Rome, two roads from Anhialo to different points on the diagonal path (along the nowadays route Belgrade - Istanbul), have been separated from the very Anhialo. That separation happened after crossing the Strait of Mandra Lake as another solution was impossible due to the natural limitation of the three Burgas Lakes. So Pudizo, marked on 17 Roman miles from Anhialo was set far off its right place on the west Pontica road (the road along the Black Sea coast). This hypothesis solves the problem of the distance - 17 + 18 = 35 Roman miles (51.85 km) and with the localization of Pudizo - around the Strait of Mandra Lake (Poros) and Cape Foros.
The latest archaeological survey conducted by RIM Burgas at Cape Foros and in the vicinity Poda (near Poros), confirms this thesis.