BOHAI STRAIT, FROM 220000UTC TO 261600UTC MAR, TUG HAIYANGSHIYOU677 TOWING PLATFORM TIAOZHANZHE, LENGTH OVERALL 531 METERS, SPEED 4 KNOTS, VIA:
A:38-22.1N/120-05.3E;
B:38-14.0N/119-47.5E;
C:38-21.0N/120-05.2E;
D:38-21.0N/120-09.0E;
E:38-37.5N/120-43.5E;
F:38-18.5N/121-25.0E;
G:37-31.0N/122-16.3E;
H:37-28.9N/122-13.6E;
I:37-28.2N/122-13.9E;
J:37-27.6N/122-14.6E.
CAUTION TO AVOID.
SHANDONG MSA CHINA.