GD66/24 SOUTH CHINA SEA “DE SHEN” TOWING DRILLING PLATFORM “NAN HAI LIU HAO” FROM 20-51.6N 114-36.9E TO 21-37.7N 116-30.5E FROM 30 APR TO 4 MAY. LENGTH OF TOW 300M TO 600M SPEED 3KN TO 6KN SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA