The Castel Tower was an Islamic fortification site in Djerba and was initially erected by the Aragonese commander Roger de Loria in 1284 on the Djerba peninsula, to position a large garrison and establish the seat of government for the Sicilian Christians after the capture of Djerba in 1280 before being recaptured by Dargoth Pasha In 1551, where he reinforced the defenses of the place by the outer walls to make it an advanced defensive position and to monitor the entrance to the Qantara strait. The visitor will see the wonderful views of the sea from the top of the fort.