This is the main water access to the harbour area of the historic centre ; it is the preferred route for passenger traffic. Ships
The canal floor lies 12 metres below the average level of the sea, it is 150 metres wide and is marked off in the seaward part by two breakwater dams oriented in a NW direction; the north lying dam is 3,635 metres long and the southward one is 3,155 metres long.
The inlet of Lido is kept open to navigation by a cunette currently kept at 10.60 meters under the average sea level; it is 150 meters wide and extends into the sea from the end of the jetties for more than two kilometres.