Not a portrayal of a channel there, but of the diolkos. Play a game as the makedonians and read about the unique building there.

As I said, we don't know why the culture grouping that epeiros is part of (Romani/Epeiros/Maks/KH) is placing watchtowers that are supposed to be there for the eastern factions. It is some techincal glitch. We don't intend for them to be like that.