They climbed a 40-meter high place in Hwasun Port of Soguipho City where they put up a placard reading "Stop the Jeju naval base construction polluting nature and breaking peace". There they disclosed and censured the crimes of the puppet government authorities, opposing the naval base construction which threatens peace and pollutes the natural environment.

Much upset by it, the authorities went on the rampage to check the demo by mobilizing even a crane but the demonstrators doggedly stood against it.

That day the police took away by force all of them.