Two wings at a right angle
The Skala du Port has two fortified wings, each about 200 metres long, meeting at a right angle. One overlooks the quay and the dry dock; the other faces the islands offshore, covering the approach to the harbour.
Bronze cannons from Europe
Most of its bronze cannons were made in Spain, with some from the Netherlands. Each is about 3.25 metres long, with a calibre of 150 mm, and was designed to fire a 4.5 kg ball about 1,500 metres.
Joined to the sea gate
The battery is joined to the Porte de la Marine, the gate between the medina and the port, which carries a date in the Islamic year 1184, about 1770.



