ZCZC SA58 NCC-HAMBURG 131345 UTC JUL 26 NAV. WARN. NO. 404 GERMAN BIGHT NORTHWEST OF OFFSHORE-WINDPARK 'GLOBAL TECH 1'. SURVEY OPERATIONS IN PROGRESS BY MV 'GEO OCEAN 3' CS 'LXGP' WITHIN A RADIUS OF APPROX. 3 NM AROUND POSITION 54-354N 006-077E VESSEL TOWING MEASURING INSTRUMENTS. RESTRICTED MANOEVRABILITY DURING OPERATIONS. BERTH OF 500M REQUESTED. NNNN