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Caernarfon Harbour Trust

Caernarfon Harbour Trust

53°08’N 004°16’W Caernarfon Harbour Trust is committed to providing the best service possible to its users.

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Category Archives: Notice to Mariners

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Local Notice to Mariners 25/2025

Caernarfon Harbour Trust Posted on 16/08/2025 by admin16/08/2025

25-25 NtoM 15/08/2025 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464 Menai Strait Ymhellach i NtoM 23/2025 gweler yr amseroedd rasio wedi’u cadarnhau ar gyfer digwyddiad rasio cychod pŵer OCRDA blynyddol. Further to NtoM 23/2025 please … Continue reading →

Posted in Notice to Mariners

Local Notice to Mariners 23/2025

Caernarfon Harbour Trust Posted on 11/08/2025 by admin11/08/2025

23-25 NtoM 07/08/2025 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464 Menai Strait Ar ddydd Sadwrn 15 a dydd Sul 16 o Awst mae Harbwr Caernarfon yn cynnal y OCRDA Rasio Cychod Pŵer blynyddol. Cynghorir Morwyr … Continue reading →

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Local Notice to Mariners 22/2025

Caernarfon Harbour Trust Posted on 17/07/2025 by admin17/07/2025

22-25 NtoM 17/07/2025 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464 Bar Caernarfon Bar Mae yr cymhorthydd mordwyo Aber Menai Point ar ei safle priodol ac yn dangos goleuadau priodol. Y safle siartredig yw 53̊ 7.619 … Continue reading →

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Local Notice to Mariners 21/2025

Caernarfon Harbour Trust Posted on 16/07/2025 by admin16/07/2025

21-25 NtoM 16/07/2025 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464 Bar Caernarfon Bar Mae yr cymhorthydd mordwyo Aber Menai Point ar ei safle priodol ond nid yw yn dangos goleuadau priodol. Y safle siartredig yw … Continue reading →

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Local Notice to Mariners 20/2025

Caernarfon Harbour Trust Posted on 15/07/2025 by admin16/07/2025

20-25 NtoM 15/07/2025 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464 Bar Caernarfon Bar Nid yw cymhorthydd mordwyo Aber Menai Point ar ei safle priodol. Y safle siartredig llongddrylliadau yw 53̊ 7.619 Gog 004̊ 19.715 Gor. … Continue reading →

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Local Notice to Mariners 19/2025

Caernarfon Harbour Trust Posted on 04/07/2025 by admin04/07/2025

19-25 NtoM 04/07/2025 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464 Cynghorir morwyr am safleoedd cyfredol y Cymhorthion Mordwyo a restrir isod. Mariners are advised of the current positions of the Aids to Navigation listed below.

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Local Notice to Mariners 18/2025

Caernarfon Harbour Trust Posted on 15/05/2025 by admin15/05/2025

18-25 NtoM 01/04/2025 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464 Y Felinheli – Port Dionorwic Mae tri Marc Rasio Tymhorol wedi’u sefydlu yn y safleoedd canlynol: CHYF 3 – 53˚10.867N 004˚ 13. 476W CHYF 4 … Continue reading →

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Local Notice to Mariners 17/2025

Caernarfon Harbour Trust Posted on 15/05/2025 by admin15/05/2025

17-25 NtoM 12/05/2025 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464 Y Fenai – Menai Strait Mae cymhorthydd mordwyo drots dro Port “T” Fl(2) R 5s nawr ar ei safle yn y lleoliad isod. 53ᵒ10.53′ Gog … Continue reading →

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Local Notice to Mariners 16/2025

Caernarfon Harbour Trust Posted on 15/05/2025 by admin15/05/2025

16-25 NtoM 12/05/2025 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464 Aber Seiont Mae Pont Aber nawr yn weithredol. Mae Hysbysiad i Forwyr 15/2025 yn cael ei ganslo drwy hyn. The Aber bridge is now operational. … Continue reading →

Posted in Notice to Mariners

Local Notice to Mariners 15/2025

Caernarfon Harbour Trust Posted on 10/05/2025 by admin12/05/2025

15-25 NtoM 10/05/2025 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464 Aber Seiont Hysbysiad o gyfyngiad dros dro i fynd i mewn i Afon Seiont neu ei gadael, oherwydd methiant mecanyddol Pont yr Aber. Nid yw’r … Continue reading →

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Local Notice to Mariners 14/2025

Caernarfon Harbour Trust Posted on 03/05/2025 by admin03/05/2025

14-25 NtoM 30/04/2025 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464 Aber Seiont http://www.gwylfwydcaernarfon.cymru/2025-festival.html Hysbysiad o newid dros dro i weithdrefnau gweithredu presennol Pont Yr Aber. Ar 10/05/2025. Bydd y bont yn agor yn ôl yr … Continue reading →

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Local Notice to Mariners 13/2025

Caernarfon Harbour Trust Posted on 29/04/2025 by admin06/05/2025

13-25 NtoM 29/04/2025 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464 Mae Hysbysiad i Forwyr 17/2022 yn cael ei ganslo drwy hyn. Notice to Mariners 17/2022 is hereby cancelled.

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Posted in Notice to Mariners

Local Notice to Mariners 12/2025

Caernarfon Harbour Trust Posted on 04/04/2025 by admin04/04/2025

12-25 NtoM 03/04/2025 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464 Bar Caernarfon Bar Mae cymhorthydd mordwyo Starboard Rhif C11 Fl(2)G.5s nawr yn ddangos ei siâp dydd priodol ac nawr yn arddangos ei nodweddion golau priodol. … Continue reading →

Posted in Notice to Mariners

Local Notice to Mariners 11/2025

Caernarfon Harbour Trust Posted on 04/04/2025 by admin07/05/2025

11-25 NtoM 01/04/2025 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464 Bar Caernarfon Bar Longddrylliad “Grampian Castle” Wreck Mae Cardinal De sefydlog newydd VQ(6) + LFl 10s  (Castell Grampian) wedi osod ar longddrylliad “Grampian Castle”. 53ᵒ07.30′ … Continue reading →

Posted in Notice to Mariners, Sticky N2M

Local Notice to Mariners 10/2025

Caernarfon Harbour Trust Posted on 31/03/2025 by admin04/04/2025

10-25 NtoM 13/03/2025 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464 Bar Caernarfon Bar Mae cymhorthydd mordwyo Starboard Rhif C11 Fl(2)G.5s nad yw’n dangos ei siâp dydd priodol ac nad yw’n arddangos ei nodweddion golau priodol. … Continue reading →

Posted in Notice to Mariners

Local Notice to Mariners 09/2025

Caernarfon Harbour Trust Posted on 24/03/2025 by admin24/03/2025

09-25 NtoM 19/03/2025 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464 Swellies Cynghorir morwyr bod yr hysbysiad hwn yn dileu Hysbysiad 08/25. Mariners are advised that this notice herby cancels Notice 08/25.

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Posted in Notice to Mariners

Local Notice to Mariners 08/2025

Caernarfon Harbour Trust Posted on 19/03/2025 by admin24/03/2025

08-25 NtoM 19/03/2025 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464 Swellies Bydd dau fwi angori yn cael eu lleoli o amgylch Swelly Rock o 13:00 ar 21/03/25 hyd nes y cyhoeddir Rhybudd Morwriaeth yn dileu. … Continue reading →

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Local Notice to Mariners 07/2025

Caernarfon Harbour Trust Posted on 17/03/2025 by admin19/03/2025

07-25 NtoM 17/03/2025 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464 Bae Caernarfon Bay Cynghorir morwyr y bydd y cwch “Seven Guardian” yn cynnal arolwg gwyddonol ar raddfa fach (samplu cydio) rhwng y dyddiadau isod yn … Continue reading →

Posted in Notice to Mariners

Local Notice to Mariners 06/2025

Caernarfon Harbour Trust Posted on 17/03/2025 by admin19/03/2025

06-25 NtoM 13/03/2025 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464 Bar Caernarfon Bar Mae cymhorthydd mordwyo Bwi Tramwyo L FL 10s ar ei safle priodol. 53ᵒ06.95′ Gog 004ᵒ25.14′ Gor Aid to navigation Fairway Buoy L … Continue reading →

Posted in Notice to Mariners

Local Notice to Mariners 05/2025

Caernarfon Harbour Trust Posted on 17/03/2025 by admin19/03/2025

05-25 NtoM 13/03/2025 – Y Fenai – Siart 1464 – Menai Strait – Chart 1464 Ynys Llanddwyn Island Mae cymhorthydd mordwyo “Graig Dde dwyrain” Ynys Llanddwyn Cardinal De, Melyn a Du nawr ar ei safle priodol. 53ᵒ08.04′ Gog 004ᵒ24.46′ Gor … Continue reading →

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Caernarfon Harbour Trust
Harbour Office, Porthi Dre
Ty Seiont, St Helens Road
Caernarfon, LL55 2YD

Contact Us
Tel: 01286 875355 (08:00-16:00 Mon-Fri)
Email: hm@caernarfonharbour.org.uk
VHF: Channel 16

Victoria Dock Marina
Tel: 07483 072851 (operational hours only)
Email: dm@caernarfonharbour.org.uk
VHF: Channel 80

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