CoastalHellenic Navigational Warnings - NavwarnsMessages697/26697/26SÉCURITÉReceived 26 May 2026, 00:00 UTCArchived 31 Oct 2026, 12:08 UTCCopy textShow on mapSharePrintExportWarning textPositions open on the mapNAVWARN 697/26 SARONIKOS GULF. MEGARA CHANNEL. 1ST STARBOARD SIDE FOR INBOUNDING VESSELS. GREEN LIGHTBUOY POROS MEGARON ”1” IN POSITION : 37 58 31N – 023 25 21E UNLIT.Location mapOpen on the full mapKeywordsUNLITMore from Hellenic Navigational Warnings - Navwarns1381/262026-11-11NAVWARN 1381/26 SOUTH EVVOIKOS GULF. WESTERN COAST. AGIA MARINA BAY. MOLE HEAD OF AGIA MARINA BAY FLASHING GREEN LIGHT IN POSITION: 38 11 22N – 024 03 59E UNLIT.1375/262026-11-11NAVWARN 1375/26 CENTRAL AEGEAN SEA EAST OF EVVOIA ISLAND. ACTIVATION OF FIRING PRACTICE AREA ‘KOSKINA. LIVE FIRING EXERCISES ON 12,17,19,24 AND 26 NOV 2026 FROM 0500Z TO 2159Z OF EACH DAY. AND ON 01,01379/262026-11-11NAVWARN 1379/26 NORTH IONIAN SEA. KERKYRA STRAIT UNDERWATER WORKS WILL BE CARRIED OUT BY VESSEL AETHRA FROM 14 NOC 2026 UNTIL FURTHER NOTICE IN THE LINE BETWEEN THE POINTS: 39 40 44N – 020 01 15E 39 41318/262026-11-02archivedNAVWARN 1318/26 SOUTH AIGAIO SEA. KYTHNOS ISLAND. WHITE LIGHT AT SOUTH ΝΑ ΜΕΤΑΔΙΔΕΤΑΙ ΜΕΧΡΙ ΚΑΙ 22:00 ΤΗΣ 04/11/2026 NAVWARN: END OF LOYTRA BAY ENTRANCE. IN POSITION: 37 26 31N – 024 25 58E UNLIT.1146/262026-09-23archivedNAVWARN 1146/26 MALIAKOS GULF. STYLIDA CHANNEL. UNDER CONSTRUCTION DEEEPING OPERATIONS. PROHIBITION OF TRANSIT, ANCHORAGE AND ANY OTHER ACTIVITIES FOR ALL SHIPS AND PLEASURE CRAFTS. FROM 23 SEP 2026 ULater warnings706/262026-05-27archivedNAVWARN 706/26 NAVWARNS 691/2026,637/2026 CANCELLED.705/262026-05-27NAVWARN 705/26 CENTRAL AEGEAN SEA. OINOUSSES ISLAND KAKOPETRIA SEA AREA DANGEROUS OBJECT-AMMUNITION REPORTED IN POSITION: 38 31 00N – 026 12 43E DEPTH 4M. DISTA709/262026-05-28NAVWARN 709/26 SOUTH EVOIKOS BAY. NEA STYRA. DESTRUCTION OF LIGHT MARKING REEF GLAROS IN POSITION : 38 11 06N – 024 10 31E DANGER TO NAVIGATION.Earlier warnings698/262026-05-26archivedNAVWARN 698/26 SARONIKOS GULF. MEGARA CHANNEL. RED LIGHTBUOY 1ST PORTSIDE IN POSITION : 37 58 30N – 023 25 18E UNLIT.693/262026-05-25archivedNAVWARN 693/26 MYRTOO SEA.SPETSAI ISLAND ANCHORING AND MOORING BUOYS DEPLOYMENT PROHIBITED. FROM 01 APRIL TО 31 ОСTOBER 2026 WITHIN SEA AREA “MEGALI ZOGERIA” BO675/262026-05-22archivedNAVWARN 675/26 NORTHWESTERN AEGEAN SEA. PAGASITIKOS GULF. ALONNISOS ISLAND. PROHIBITION OF NAVIGATION FROM 26 MAY 26 UNTIL 31 ОСТОBER 26 WITH THE EXCEPTION OF TBack to Hellenic Navigational Warnings - Navwarns