CoastalHellenic Navigational Warnings - NavwarnsMessages858/26858/26SÉCURITÉReceived 02 Jul 2026, 00:00 UTCArchived 22 Jul 2026, 10:44 UTCCopy textShow on mapSharePrintExportWarning textPositions open on the mapNAVWARN 858/26 CANCEL NAVWARN 765/2026. SOUTH AEGEAN SEA. AMORGOS ISLAND. SUBSEA OPERATIONS WILL BE CARRIED OUT BY VESSEL ‘AEGEAS’ FROM 03 JULY 26 UNTIL FURTHER NOTICE IN POSITIONS: 36 52 44N – 025 55 55E WIDE BERTH REQUESTEDLocation mapOpen on the full mapKeywordswide berth requestedMore from Hellenic Navigational Warnings - Navwarns1390/262026-11-13NAVWARN 1390/26 SOUTH AIGAIO SEA GEOPHYSICAL SURVEY WILL BE CARRIED OUT BY ‘NG SURVEYOR’ FROM 13 NOV 2026 IN THE LINE BETWEEN THE POINTS: 37 44 05N – 023 09 37E 37 41 04N-023 12 22E 37 39 23N – 023 181391/262026-11-13NAVWARN 1391/26 SARONIKOS GULF. FLEVES ISLAND. FIRING EXERCISES FROM 16 NOV 26 ON 1500Z UNTIL 2100Z AND FROM 17, 18 AND 19 NOV 26 ON 0900Z UNTIL 1300Z AND ON 1500Z UNTIL 2100Z NOV 26 IN THE AREA CENTE1393/262026-11-13NAVWARN 1393/26 CANCEL NAVWARN 930/2026. SARONIKOS GULF. PSYTTALEIA ISLAND. SOUTHWEST END OF SUBMARINE PIPLINES OF PSYTTALEIA ISLAND. FLASHING YELLOW LIGHTBUOY IN POSITION: 37 55 22N – 023 34 41E CUT758/262026-06-10archivedNAVWARN 758/26 CANCELLATION OF NAVWARN 737/2026. SOUTH AEGEAN SEA. THIRA ISLAND. PORT CONSTRUCTION WORKS. DREDGING OPERATIONS IN PROGRESS. FROM 10 JUNE 2026 UNTIL FURTHER NOTICE IN THE SEA AREA BOUNDE528/242024-04-14archivedNAVWARN 528/24 SOUTH AEGEAN SEA. PAROS ISLAND. DROPPING OF DREDGINGS FROM 15 APR 2024 UNTIL FURTHER NOTICE. DROPPING OF DREDGINGS ΙΝ AREA BOUNDED BY: 37 04 16N 025 03 33E 37 04 16N 025 03 41E 37 04 10Later warnings860/262026-07-02archivedNAVWARN 860/26 SOUTH AEGEAN SEA. YACHTS SAILING RACE. AEGEAN 600 FROM 03 JUL UNTIL 11 JUL 26 WITH COURSE: C. SOUNIO – SOUTH OF MILOS ISLAND – THIRA ISLAND – SOU859/262026-07-02archivedNAVWARN 859/26 MYRTOO SEA. EXTENSION OF ACTIVATION OF FIRING PRACTICE AREA NISIDES KARAVIA. FRENCH NAVAL AIRFORCE AND NAVY LIVE FIRING EXERCISES 050600Z – 05080862/262026-07-03archivedNAVWARN 862/26 NAVWARN 844/2026 CANCELLED.Earlier warnings857/262026-07-01archivedNAVWARN 857/26 NORTH IONIAN SEA. SOUTH IONIAN SEA. KITHIRA SEA. SOUTHWEST KRETAN SEA. RESEARCH OPERATIONS FROM S/V “BLUE PANDA” FROM 03 JULY 2026 UNTIL 23 JULY851/262026-06-30NAVWARN 851/26 CANCELLATION OF NAVWARN 497/2026 SOUTH AIGAIO SEA.IOS ISLAND. TEMPORARY HOISTING OF LIGHTBUOYS IN POSITIONS: 36 43 25N – 025 16 19E 36 43 26N – 0855/262026-06-30archivedNAVWARN 855/26 ARGOLIKOS GULF.CHELI PORT. NW ENTRANCE POINT. LIGHT: 37 18 52N – 023 07 38E UNLIT.Back to Hellenic Navigational Warnings - Navwarns