GD180/21 SOUTH CHINA SEA SEISMIC SURVEY BY M/V “HAI YANG SHI YOU 760” IN AREA BOUNDED BY 19-22-13N 112-58-20E、19-35-13N 113-22-02E、19-14-27N 113-35-12E AND 19-01-24N 113-11-26E FROM 12 AUG. TO 17 OCT. THE VESSEL TOWING 6 CABLES LENGTH 6600M WITH ORANGE RED VISUAL BUOY AT EACH CABLE END FLASHING WHITE LIGHT AT NIGHT SPEED 4.3KN SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED CROSSING THE CABLES AREA PROHIBITED GUANGDONG MSA CHINA