BOHAI STRAIT, TUG BEIHAIJIU113 TOWING DEFU6, FROM ZHIFU BAY 37-36.0N 121-27.0E TO DONGYING 38-17.1N 118-45.1E, FROM 131600UTC TO 161600UTC OCT, SPEED 4 KNOTS VIA 36-36.1N 121-27.0E，37-58.0N 121-04.5E,38-05.0N 120-25.0E,38-16.0N 119-37.0E,38-17.0N 119-01.5E.CAUTION TO AVOID.
SHANDONG MSA CHINA.