The Spui is a small tidal river in South Holland

South Holland

South Holland is a province situated on the North Sea in the western part of the Netherlands. The provincial capital is The Hague and its largest city is Rotterdam.South Holland is one of the most densely populated and industrialised areas in the world...

 in the Netherlands

Netherlands

The Netherlands is a constituent country of the Kingdom of the Netherlands, located mainly in North-West Europe and with several islands in the Caribbean. Mainland Netherlands borders the North Sea to the north and west, Belgium to the south, and Germany to the east, and shares maritime borders...

, separating the islands of Voorne-Putten

Voorne-Putten

thumb|225px|right|Satellite image of the [[Rhine]]-[[Meuse river|Meuse]] [[river delta|delta]], showing the island of Voorne-Putten Voorne-Putten is an island between the North Sea, the Brielse meer and the rivers Oude Maas, Spui and Haringvliet in the province of South Holland in the Netherlands...

 and Hoekse Waard. Historically, it forked off the Oude Maas river at the town of Oud-Beijerland

Oud-Beijerland

Oud-Beijerland is a town and municipality in the western Netherlands, in the province of South Holland. With a population of 23,797 in 2005, it is the most populated town on the Hoekse Waard island, located on the Oude Maas and Spui Rivers....

 to end in the Haringvliet

Haringvliet

The Haringvliet is a large inlet of the North Sea, in the province of South Holland in the Netherlands. It is an important estuary of the Rhine-Meuse delta.Near Numansdorp, the Hollands Diep splits into the Haringvliet and the Volkerak estuaries...

 estuary

Estuary

An estuary is a partly enclosed coastal body of water with one or more rivers or streams flowing into it, and with a free connection to the open sea....

, but as a (planned) result from the Delta Works

Delta Works

The Delta Works is a series of construction projects in the southwest of the Netherlands to protect a large area of land around the Rhine-Meuse-Scheldt delta from the sea. The works consist of dams, sluices, locks, dikes, levees, and storm surge barriers...

, its flow has been reversed.

There are no bridges or tunnels crossing the Spui, but there is a car ferry

Ferry

A ferry is a form of transportation, usually a boat, but sometimes a ship, used to carry primarily passengers, and sometimes vehicles and cargo as well, across a body of water. Most ferries operate on regular, frequent, return services...

 from Hekelingen

Hekelingen

Hekelingen is a village in the Dutch province of South Holland. It is located immediately to the south of Spijkenisse.From 1812 to 1817, Hekelingen was part of Spijkenisse. It was a separate municipality from 1817 until 1 January 1966, when it merged with Spijkenisse.-External links: Map of the...

 (municipality Spijkenisse

Spijkenisse

Spijkenisse is a town and municipality in the western Netherlands, in the province of South Holland. The municipality had a population of 74,482 in 2006, and covers an area of 30.23 km²...

) to Nieuw-Beijerland

Nieuw-Beijerland

Nieuw-Beijerland is a town in the Dutch province of South Holland. It is a part of the municipality of Korendijk, and lies about 3 km south of Spijkenisse.In 2001, the town of Nieuw-Beijerland had 3200 inhabitants...

 (municipality Korendijk

Korendijk

Korendijk is a municipality on the Hoeksche Waard Island in the western Netherlands, in the province of South Holland...

), and a pedestrian and bicycle ferry between Oud-Beijerland

Oud-Beijerland

Oud-Beijerland is a town and municipality in the western Netherlands, in the province of South Holland. With a population of 23,797 in 2005, it is the most populated town on the Hoekse Waard island, located on the Oude Maas and Spui Rivers....

 and Rhoon

Rhoon

thumb|200px|Castle Rhoonthumb|200pxRhoon is a village that borders the municipality of the city of Rotterdam, South Holland, the Netherlands.According to its history it was established in 1199 and was ruled by the lords of Duiveland...

 (in Albrandswaard

Albrandswaard

Albrandswaard is a municipality in the western Netherlands, in the province of South Holland. The municipality had a population of 19,607 in 2004, and covers an area of 23.75 km² of which 1.57 km² is water....

).