CoastalHellenic Navigational Warnings - NavwarnsMessages563/26563/26Received 29 Apr 2026, 00:00 UTCCopy textShow on mapSharePrintExportWarning textPositions open on the mapNAVWARN 563/26 CANCELLATION OF NAVWARN 1774/2021 SOUTH WEST AIGA!O SEA. ARGOLIKOS GULF.NAFPLIO BAY.NEA KIOS.PIER HEAD. ESTABLISHMENT OF NEW LIGHΤS. GREEN LIGHT IN POSITION: 37 34 58N – 022 44 55E RED LIGHT IN POSITION: 37 34 57N -022 44 56ELocation mapOpen on the full mapMore 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 warnings577/262026-04-30archivedNAVWARN 577/26 NAVWARNS 476/2026, 533/2026, 536/2026 CANCELLED567/262026-04-30archivedNAVWARN 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 37585/262026-05-01archivedNAVWARN 585/26 MYRTOO SEA. EAST COAST OF PELOPONNISOS. MONEMVASIA MAPINA ESTABLISHMENT OF TEMPORARY LIGHT RED FLASHING LIGHT IN POSITION: 36 41 04N – 023 02 23EEarlier warnings543/262026-04-24NAVWARN 543/26 NAVWARN 532/2026 CANCELED. NORTH IONIO SEA. LEFKADA CHANNEL.FLOATING SWING BRIDGE FROM 24 APR 2026 UNTIL FURTHER NOTICE THE OPENINGS FOR TRANSITI537/262026-04-24archivedNAVWARN 537/26 CENTRAL AEGEAN SEA. OINOUSSES ISLAND. S.BREAKWATER HEAD OINOUSSES HARBOUR. RED LIGHT IN POSITION: 38 30 38N – 026 13 10E UNLIT.529/262026-04-23archivedNAVWARN 529/26 THERMAIKOS GULF. THESSALONIKI PORT. ESTABLISHMENT OF TEMPORARY LIGHTBUOYS. A) YELLOW FLASHING LIGHTBUOY IN POSITION: 40 37 35N – 022 54 11E FOCALBack to Hellenic Navigational Warnings - Navwarns