Jaffna lagoon is a large lagoon

Lagoon

A lagoon is a body of shallow sea water or brackish water separated from the sea by some form of barrier. The EU's habitat directive defines lagoons as "expanses of shallow coastal salt water, of varying salinity or water volume, wholly or partially separated from the sea by sand banks or shingle,...

 off Jaffna District

Jaffna District

Jaffna district is one of the 25 administrative districts of Sri Lanka. The district is administered by a District Secretariat headed by a District Secretary appointed by the central government of Sri Lanka. The headquarters is located in Jaffna city. Parts of the district were transferred to...

 and Kilinochchi District

Kilinochchi District

Kilinochchi district is one of the 25 administrative districts of Sri Lanka. The district is administered by a District Secretariat headed by a District Secretary appointed by the central government of Sri Lanka. The headquarters is located in Kilinochchi town...

, northern Sri Lanka

Sri Lanka

Sri Lanka, officially the Democratic Socialist Republic of Sri Lanka is a country off the southern coast of the Indian subcontinent. Known until 1972 as Ceylon , Sri Lanka is an island surrounded by the Indian Ocean, the Gulf of Mannar and the Palk Strait, and lies in the vicinity of India and the...

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The lagoon is surrounded by the densely populated Jaffna peninsula

Jaffna Peninsula

The Jaffna Peninsula is an area in Northern Province, Sri Lanka. It is home to the capital city of the province, Jaffna and comprises much of the former land mass of the ancient Tamil kingdoms of the Nagas and the medieval Jaffna kingdom. The peninsula is mostly surrounded by water, connected to...

 containing palmyra palms

Borassus flabellifer

Borassus flabellifer, the Asian Palmyra palm, Toddy palm, Sugar palm, or Cambodian palm, is native to South and Southeast Asia, in the Indomalaya ecozone...

, coconut

Coconut

The coconut palm, Cocos nucifera, is a member of the family Arecaceae . It is the only accepted species in the genus Cocos. The term coconut can refer to the entire coconut palm, the seed, or the fruit, which is not a botanical nut. The spelling cocoanut is an old-fashioned form of the word...

 plantations, and rice paddies. There are numerous fishing

Fishing

Fishing is the activity of trying to catch wild fish. Fish are normally caught in the wild. Techniques for catching fish include hand gathering, spearing, netting, angling and trapping....

 villages and some salt pans

Salt evaporation pond

Salt evaporation ponds, also called salterns or salt pans, are shallow artificial ponds designed to produce salts from sea water or other brines. The seawater or brine is fed into large ponds and water is drawn out through natural evaporation which allows the salt to be subsequently harvested...

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The lagoon has extensive mudflats, sea grass beds and some mangroves. The lagoon attracts a wide variety of water bird

Water bird

The term water bird or waterbird is used to refer to birds that live on or around water. Some definitions apply the term especially to birds in freshwater habitats, though others make no distinction from birds that inhabit marine environments. In addition, some water birds are more terrestrial or...

s including American Flamingoes, duck

Duck

Duck is the common name for a large number of species in the Anatidae family of birds, which also includes swans and geese. The ducks are divided among several subfamilies in the Anatidae family; they do not represent a monophyletic group but a form taxon, since swans and geese are not considered...

s, gulls, terns and other shorebirds.