The port of Lakkí is almost square-shaped. It is sized 240x180 m and its shores are quayed. A pier that is set to the east extends from cape Vráchos, the north and southeast side of which is quayed while its southern side is protected by natural rocks.

The southeast side of the pier, which is 80 m long and with depths of between 10 and 11 m, is used by the ferryboats. The northern side of the pier is 104 m long. Its western part is 74 m long, with depths of between 3 and 4 m, while its eastern part is approximately 30 m long, with depths of between 7 and 11 m and is used for the berth of vessels.

The facilities of the AGMAR Marina are located at the western part of the port. The Marina can accommodate up to 50 vessels. There is a 180-meter-long quay at the northern side of the port. When entering the harbor it is necessary to pass from the southwest of the light buoy with depths of between 2.3 and 4.1 m.