The geographically small island nation of Singapore has few rivers of significant length or width, the longest of which, the Kallang River is only 10 km in length. The Singapore River, arguably the most famous in the country, is of insignificant length as well. However, the country's tropical climate and heavy rainfall require a very comprehensive network of natural draining systems, much of which has become concrete system as urbanisation spread across the island.
Geylang River (Simplified Chinese: 芽茏河) is a canalisedriver in Geylang of the Eastern Region in Singapore. With the formation of the Marina Reservoir after the completion of the Marina Barrage in 2008, the river now forms part of the reservoir.
Geylang River begins at Ubi as Geylang Canal, continues southwards, but starts turning westwards after Geylang Road, but turns southwards again once it nears Guillemard Road, before turning westwards again after Dunman Road, before emptying into the Kallang Basin near Tanjong Rhu.