The lagoon is fed by number of small rivers and the Dutch canal. It is linked to the Indian Ocean by a narrow channel to the north, near Negombo. The lagoon and the marsh land area also support local agriculture and forestry.
The lagoon is nourished by a multitude of small rivers and the Dutch canal. It is connected to the Indian Ocean via a narrow passage to the north, near Negombo. The lagoon and marshland area also support local farming and forestry.