HB0063 BOHAI SEA SUBMARINE WORK FOR MV BERGE NIMBA IN WEST ANCHORAGE OF QINHUANGDAO PORT FROM 0000UTC TO 1000UTC DAILY FROM 21 TO 23 MAY. ENTERING AND ANCHORING PROHIBITED WITHIN 0.3 MILES RADIUS OF 39-44.85N/119-35.76E. CAUTION ADVISED. HEBEI MSA CHINA.