SD442/25，BOHAI STRAIT, FROM  092200UTC  TO  111400UTC  JUL，H561 TRIAL VOYAGE IN AREA 1 BOUNDED BY THE LINES JOINING 38-25.00N 120-14.00E、38-25.00N 120-27.00E、38-12.50N 120-27.00E、38-16.75N 120-14.00E AND AREA 2 BOUNDED BY THE LINES JOINING 38-30.00N 121-43.00E、38-30.00N 121-55.00E、38-15.00N 121-55.00E、38-20.00N 121-43.00E.FROM  111400UTC  TO  120200UTC  JUL,H561 TRIAL VOYAGE IN AREA 3 BOUNDED BY THE LINES JOINING 37-48.00N 123-10.00E、37-48.00N 123-11.50E、37-47.00N 123-11.50E、37-47.00N 123-10.00E.FROM 120200UTC TO 141200UTC JUL,H561 TRIAL VOYAGE IN AREA 2 BOUNDED BY THE LINES JOINING 38-30.00N 121-43.00E、38-30.00N 121-55.00E、38-15.00N 121-55.00E、38-20.00N 121-43.00E.CAUTION TO AVOID. SHANDONG MSA CHINA.