Mullaitivu fishermen go to Vattuvaal lagoon to catch prawns, since no boats to go to sea to catch fish. They go to Vattuvaal lagoon late in the evening to catch prawns. They light kerosene lamps to attract prawns.They say that they can catch a lot of prawns on a full moon day. Small prawns are being sold for Rs.120 per kilo and, big prawns are being sold Rs.180 per kilo. They stay overnight to catch prawns.