The significance of the site for maritime transport observed ancient Greeks who called him Diomed RT. For him, they worshiped their gods that they might, as they believed, surely continue sailing. In ancient times the whole peninsula between the rivers Krka near Sibenik and Split in the Jadro called Hilski peninsula (the son of Hercules Hilu), and its inhabitants Hilijci.
Mythic significance of the site was further strengthened in the Middle Ages! Legend says that the 1062nd Mr. Ivan Trogir bishop rescued injured sailors from certain death by walking on the sea and calming the storm.
Bishop in honor of noblemen from Trogir 1331st built a church on Cape Ploce, only ten meters from the sea. Church of St.. John is still well preserved and defy time and weather (dis) advantages.