An Inland wetland of Natural origin located in the Wet Zone of the Western province. Colombo Core-Area (CCA) is composed of three Municipal Council areas, Colombo, Dehiwela-Mount Lavinia and Sri JayewardenepuraKotte and covers an area of about 75 squarekilometres.The CCA is situated in a relatively low lying flood plain. There are a number of large inland water bodiesand low lying marshy areas. Among these water bodies are the Colombo Harbour, Beira Lake, Bolgoda Lake, Diyawanna River, two wetlands (Madiwela,Kotte and Bellanvila, DMMC), and the canal network that supports the storm water discharge to the sea.
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