- The river empties into Nai Aru Lagoon.
- The province has a number of lagoons, the largest being Jaffna Lagoon, Nanthi Kadal, Chundikkulam Lagoon, Vadamarachchi Lagoon, Uppu Aru Lagoon, Kokkilai lagoon, Nai Aru Lagoon and Chalai Lagoon.
- An Integrated Strategic Environmental Assessment of Northern Province produced by the government with the assistance of United Nations Development Programme and United Nations Environment Programme and published in October 2014 recommended that Kokkilai sanctuary be extended northwards to include Nai Aru Lagoon.
- It's difficult to see nai aru in a sentence. 用nai aru造句挺難的
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