A small rectangular pool cut directly into the rock at the eastern tip of the peninsula, the Punic Port is one of the few surviving examples of pre-Roman harbour engineering in the Mediterranean. The Fatimids enlarged it for their war fleet; it could shelter around thirty ships, which would be hauled into the inner basin and out of sight of attackers.
Today the basin is partly silted and mainly used by gulls, but the outline is clear and the carved channel that linked it to the sea is still visible at low tide. There is no signage to speak of, which is part of its charm.