The city walls begin at the shoreline and fortified with towers at regular intervals. These walls, with their rectangular and polygonal construction, are from Roman times. Other remains at Aperlae are from the Byzantine and Ottoman periods. The western reaches of the wall are of rectangular construction. There are three gates in this wall, two of which have a plain and the third, a blind archway.
The southern reaches of the walls are of polygonal construction and in a bad state of repair. This side is reinforced with two towers and it is here that the main gate was located.
Besides a church in the northwest corner and a chapel in the southeast corner, no other clearly defined structures can be found. Outside the early wall, especially on its east side, are numerous tombs, nearly all sarcophagi with rounded crest and lid. Some of them stand between the early wall and the shore confirming that this area belongs only to the later fortified city. Today, one will find that the quay and associated structures of Aperlae are all underwater. Towards the west end a pier projected outwards.