SD130/25,BOHAI STRAIT,WESTERN HARBOUR OF YANTAI PORT. 2 LIGHT BUOY AMENDED,WESTERN HARBOUR OF YANTAI PORT NO.48 LIGHT BUOY AMENDED TO 37-43.03N 121-05.60E, WESTERN HARBOUR OF YANTAI PORT NO.50 LIGHT BUOY AMENDED TO 37-43.00N 121-05.17E.CAUTION ADVISED. SHANDONG MSA CHINA.