Standing between two columns on the route to Zurich are still visible the superb remains of a triple-arched aqueduct, which supplied several extensive cisterns, and which is the only monument of the Roman epoch that has been restored. Shershell also possesses a small museum, the most interesting object in which is the fragment of an Egyptian statue. The port, about 5 acres in extent, is formed by a cirque protected from the north-west winds by the islet of Joinville. But it is exposed to the dangerous north winds, during the prevalence of which it is inaccessible to shipping.
West of Shershell follow the modern settlements of Novi and Guraia, and the ruins of the ancient Gunugis, the latter occupying near the mouth of the Wed Dahmus a much better position as a seaport than the neighbouring Tenes. This place, lying almost in the centre of the Dahra coast between Tipaza and Mostaganem, owes its relative importance rather to the iron, copper, lead, and silver mines of the surrounding district. Successor of the Roman Cartennæ (or "Car Tenne", that is "Cape Tennæ," in Berber), it consists of two quarters, the old town
