ZCZC SA20 NCC-HAMBURG 240830 UTC AUG 26 NAV. WARN. NO. 479 GERMAN BIGHT8 5'' 'TERSCHELLING-GERMAN BIGHT'. DIVING OPS BY MV 'SEATERRA ACHIEVER' CS 'E6BU3' AROUND POSITION 53-477N 007-055E TRESTRICTED MANOEVRABILITY DURING OPERATIONS. BERTH OF 1 NM REQUESTED. NNNN