Port of Piraeus permanent navy base for the mighty Athenian fleet. However, in the late 4th century BC began a long period of decline for Piraeus; the harbours were only occasionally used for the Byzantine fleet and the city was mostly deserted throughout the Ottoman occupation of Greece. In 2002 PPA and the Greek government signed a concession agreement. The Greek government leased the port zone lands, buildings and facilities of Piraeus Port to PPA for 40 years. In 2008 the duration of the concession agreement was modified from 40 to 50 years. With this modification the lease is ending in 2052. Since
Port River Port River The Port River (officially known as the Port Adelaide River) is part of a tidal estuary located north of the Adelaide city centre in the Australian state of South Australia, and used as a shipping channel since the beginning of European settlement in 1836. The river is officially known as the "Port Adelaide River" while the name "Port River" is described in official sources as "a local variant." The Port River is the western branch of the largest tidal estuary on the eastern side of Gulf St Vincent. It extends inland through the historic Inner Harbour of Port