Nai Aru Lagoon

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Nai Aru Lagoon
Location Mullaitivu District, Sri Lanka
Coordinates 9°08′N 80°52′E / 9.133°N 80.867°E / 9.133; 80.867Coordinates: 9°08′N 80°52′E / 9.133°N 80.867°E / 9.133; 80.867
Type Lagoon
Primary outflows Indian Ocean
Surface area 17.6 square kilometres (6.8 sq mi)
Max. depth 4 metres (13 ft)
Surface elevation Sea level
Settlements Alampil

Nai Aru Lagoon (or Nay Aru Lagoon) is an estuarine lagoon in Mullaitivu District, north-east Sri Lanka.

The lagoon is fed by a number of small rivers, including Nay Aru (Mullaitivu). It is linked to the sea by a narrow channel to the south that is very often blocked by a sand bar. The lagoon's water is brackish.

The lagoon is surrounded by dense forest, scrubland, rice paddies and coconut palm. The land is used for prawn fishing and paddy cultivation.

The lagoon has extensive sea grass beds and mangrove swamp. The lagoon attracts a wide variety of water birds including ducks, gulls, terns and other shorebirds.


  • S.W. Kotagama, Leonard Pinto and Jayampathi L. Samarakoon. "Sri Lanka" (PDF). Wetlands International. Retrieved 23 May 2009.