CoastalHellenic Navigational Warnings - NavwarnsMessages190/24190/24Received 08 Feb 2024, 00:00 UTCArchived 14 Nov 2026, 23:05 UTCCopy textShow on mapSharePrintExportWarning textPositions open on the mapNAVWARN 190/24 SOUTH AEGEAN SEA. NAXOS ISLAND. DROPPING OF DREDGINGS FROM 07 FEB 2024 UNTIL FURTHER NOTICE. DROPPING OF DREDGINGS ΙΝ AREA BOUNDED BY: 37 10 48N – 025 22 24E 37 10 48N – 025 21 27E 37 10 06N – 025 21 24E 37 10 06N – 025 22 24E CAUTION ADVISED.Location 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 warnings188/242024-02-08NAVWARN 188/24 GULF OF THESSALONIKI. THERMAIKOS GULF. SEMISUNK MOORING BUOY. IN POSITION: 40 36 01N – 022 56 52E. CAUTION ADVISED.207/242024-02-10archivedNAVWARN 207/24 NORTH AIGAIO SEA. ALONNISOS ISLAND. PATITIRI PORT. BREAKWATER HEAD FLASHING GREEN LIGHT IN POSITION: 39 08 33N – 023 52 00E UNLIT251/242024-02-20NAVWARN 251/24 ELEFSINA GULF. LIGHTBUOY WHICH MARKS WRECK ”ALFA I” IN POSITION: 38 01 23N – 023 32 54E CUT OFF.Earlier warnings117/242024-01-26NAVWARN 117/24 PATRAIKOS GULF. LIGHTBUOY WHICH MARKS THE BIOLOGICAL CLEARING PIPE-LINE IN POSITION: 38 10 06N – 021 34 54E CUT OFF.107/242024-01-24NAVWARN 107/24 NAVWARN 435/2016 CANCELED IKARIO SEA.FOURNOI ISLAND.DANGEROUS ROCK IN POSITION : 37 34 15,42N – 026 28 19,62E. DANGER FOR NAVIGATION.62/242024-01-18NAVWARN 62/24 SOUTH AIGAIO SEA.TINOS ISLAND.GREEN LIGHTBUOY MARKING THE UNDER EXECUTION PORT CONSTRUCTIONS OF PORT TINOS IN POSITION: 37 32 12N – 025 09 20E UNLBack to Hellenic Navigational Warnings - Navwarns