ZCZC SA63 NCC-HAMBURG 221010 UTC SEP 26 NAV. WARN. NO. 531 GERMAN BIGHT. TSS 'TERSCHELLING-GERMAN BIGHT'. DIVING OPS BY MV 'SEATERRA ACHIEVER' CS 'E6BU3' AROUND POSITION 53-4861N 007-038E RESTRICTED MANOEVRABILITY DURING OPERATIONS. BERTH OF 1 NM REQUESTED. NNNN