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Uppu Aru Lagoon

  Province Northern
  District Jaffna
  Nearest Town Jaffna
  Primary inflows Short channel
  Primary outflows Jaffna Lagoon
  Surface area 30 square kilometers
  Max. depth 3 meters


Uppu Aru lagoon is a lagoon in Jaffna District, northern Sri Lanka. The lagoon separates the Valikamam region from the Thenmarachchi region. The lagoon is linked to Jaffna Lagoon by a short channel to the south. The lagoon's water is brackish. The lagoon is surrounded by a densely populated region containing palmyra palms, coconut plantations, grassland, rice paddies and extensive vegetable gardens. The lagoon has extensive mudflats and salt marshes. It is surrounded by mangroves, particularly Avicennia. The lagoon attracts a wide variety of water birds including American Flamingoes, ducks, garganey, black-tailed godwit and other shorebirds.