ZCZC QA10 110242 UTC APR 26 SPLIT RADIO RADIONAVIGATIONAL WNG 79/2026 CENTRAL ADRIATIC - HVARSKI KANAL CHART: 100-26 FROM APRIL 11TH UNTIL APRIL 17TH 2026 R/V HIDRA CONDUCTS HYDROGRAPHIC SURVEY IN AREA OF WEST PART OF HVARSKI KANAL. WIDE BERTH AND SAFE DISTANCE OF MINIMUM 200 METERS FROM R/V HIDRA REQUESTED. NNNN