ZCZC QA86 061441 UTC OCT 26 SPLIT RADIO NAVWNG 383/26 NORTHER ADRIATIC CHART: 351 FROM OCTOBER 07TH UNTIL OCTOBER 12TH 2026, HYDROGRAPHIC SURVEY WITH M/V ZVONKO IN IZABELA SE AREA IN 44-53,712N 013-12,660E. NAVIGATION IN RADIUS OF 500 METERS FROM THE VESSEL PROHIBITED. NNNN