Hergla town is 35 kilometers to the north of Sousse on a rocky stretch of coast which are interrupted by sandy coves. This town has a population of 6,000 and is relatively unspoiled by tourism. It occupies the site of ancient HorracaCaelia, which is the second century made historic site. It lays on the boundary between the two provinces of Zeufitania and Byzacena. It was destroyed completely during the Arab invasion. Moreover, the town has a fine 18th century mosque too.