CoastalHellenic Navigational Warnings - NavwarnsMessages584/26584/26SÉCURITÉReceived 01 May 2026, 00:00 UTCCopy textShow on mapSharePrintExportWarning textPositions open on the mapNAVWARN 584/26 NORTH AEGEAN SEA. SKOPELOS ISLAND PORT CONSTRUCTION WORKS. DREDGING OPERATIONS. IN PROGRESS. FROM 04 MAY 2026 UNTIL FURTHER NOTICE IN THE SEA AREA BOUNDED BY: 39 07 28N – 023 44 08E 39 07 23N -023 44 06E 39 07 23N – 023 43 55E 39 07 23N – 023 43 48E 39 07 17N – 023 43 49E 39 07 15N – 023 43 53E 39 07 19N – 023 44 00E 39 07 21N – 023 44 06E 39 07 24N – 023 44 12E AND DROPPING OF DREDGINGS WILL BE CARRIED OUT IN THE SEA AREA BOUNDED BY: 39 08 54N – 023 45 05E 39 08 55N – 023 45 40E 39 09 22N – 023 45 43E 39 09 24N – 023 45 07E CAUTION ADVISEDLocation mapOpen on the full mapKeywordsdredging operationsMore 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 warnings601/262026-05-05archivedNAVWARN 601/26 NAVWARNS 243/2026, 405/2026 CANCELLED604/262026-05-05archivedNAVWARN 604/26 NAVWARN 556/2026 CANCELLED603/262026-05-05NAVWARN 603/26 NORTHWEST AEGEAN SEA. SITHONIA PENINSULA .AGIOS IOANNIS AREA PLEASURE YACHTS SHELTER NEW LIGHTS ESTABLISHED. A)FIXED RED LIGHT AGIOS IOANNIS ON TEarlier warnings582/262026-05-01archivedNAVWARN 582/26 SOUTH EVOIKOS GULF. PORTO RAFTI SEA AREA. SAILING RACE WILL BE CONDUCTED ON 01 MAY 2026 UNTIL SUNSET ON 02 MAY 2026 FROM 0800Z UNTIL SUNSET ON 03585/262026-05-01archivedNAVWARN 585/26 MYRTOO SEA. EAST COAST OF PELOPONNISOS. MONEMVASIA MAPINA ESTABLISHMENT OF TEMPORARY LIGHT RED FLASHING LIGHT IN POSITION: 36 41 04N – 023 02 23E567/262026-04-30archivedNAVWARN 567/26 SARONIKOS GULF. POROS ISLAND. ANCHORING PROHIBITED UNTIL 31 OCT 2026 IN THE SEA AREA BOUNDED BY: 37 30 17N – 023 27 12E 37 30 17N – 023 27 05E 37Back to Hellenic Navigational Warnings - Navwarns