HB0052 BOHAI SEA SAILING CHAMPIONSHIP ACTIVITIES IN AREA BOUNDED BY THE LINES JOINING:
（1）39-53.88N/119-35.65E； （2）39-52.24N/119-34.31E；
（3）39-50.83N/119-33.19E； （4）39-49.82N/119-33.65E；
（5）39-50.13N/119-35.67E； （6）39-53.17N/119-37.05E.
FROM 0100UTC TO 0900UTC DAILY FROM 28 TO 30 AUG. ENTERING PROHIBITED. HEBEI MSA CHINA.