The Old Port, located in the southeast of the old town is enclosed between the pier St. Anthony and the pier  St. Nicholas. The port is subject to silting and regular dredging. 
Off the waterfront Nazario Sauro, about 200 m from the shore, and for a distance of 1,200 m, starting from the roundabout towards ESE, we find seven breakwaters each of which is 110 m long. 
Another cliff of 180 m is positioned to defend the old port on the line joining the green light of the pier S. Antonio with the western end of the first cliff waterfront thus restricting the entrance to 84 m: on the north of that cliff is placed on a light pole red.
To access keep the right when entering and leave the red light to the left to avoid the cliff.