NORTH YELLOW SEA, FROM 150200UTC TO 221500UTC NOV，PEARL KARUIZAWA TRIAL VOYAGE IN TWO AREAS BOUNDED BY 37-52.5N 120-24.0E,37-52.5N 120-28.0E,37-50.3N 120-28.0E,37-50.3N 120-24.0E AND 38-30.0N 121-50.0E,38-30.0N 122-00.0E,38-16.0N 122-00.0E,38-16.0N 121-50.0E.CAUTION TO AVOID.
SHANDONG MSA CHINA.