The River Liffey rises in the Sally Gap near Kippure in the Wicklow Mountains.It meanders for 75 miles (125km) before joining the tidal waters of the sea which reach inland as far as Islandbridge. Several of its tributaries, which used to course in the open through the city, are now ignominiously confined to underground channels. Not a large river by the standards of other capital cities the Liffey nevertheless has always had a central role in the prosperity (or otherwise), history, literature and culture of the city.

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