The old part of the city, where the port and fortified city were located, protrudes from the coastline, exposing both sides of the narrow piece of land to the sea. This could maximize its efficiency as a port, and the narrow entrance to this protrusion served as a natural and easy defense to the city. Both the archaeological record and Crusader texts emphasize Acre's strategic importance—a city in which it was crucial to pass through, control, and, as evidenced by the massive walls, protect.