ZCZC SA06 NCC-HAMBURG 161000 UTC AUG 26 NAV. WARN. NO. 459 GERMAN BIGHT. TSS 'TERSCHELLING-GERMAN BIGHT'. DIVING OPS BY MV 'SEATERRA ACHIEVER', CKM JGBU3', AROUND POSITION 53-55,7N 006-57,6E RESTRICTED MANOEVRABILITY DURING OPERATIONS. BERTH OF 1 NM REQUESTED. NNNN