Conwy Notice to Mariners 01/2021

All mariners are advised that the yacht “Allegra” has sunk and currently lies in-between the Liverpool Arms jetty and the pontoon opposite the Conwy Quay Wall that the sightseeing cruise vessel “Queen Victoria” is usually berthed on. There is also some debris floating in the river. A further update will follow as soon any further information is received. The wreckage is not marked.

All mariners are to exercise extreme caution requested to keep clear.

Matthew Forbes
MSc LLB (hons) BSc MNI
Conwy Harbour Master

Caernarfon Notice to Mariners 06/2021

Aid to navigation Port No C2 Fl. R 10s is now on its appropriate station.

53° 07’.140 N 004 °24’.361 W

David John O’Neill
Caernarfon Harbour Master

Caernarfon Notice to Mariners 05/2021

Aid to Navigation Starboard No C3 Q.G is now on its appropriate position.

53°­ 07’.25 N 004° 23’.87 W

David John O’Neill
Caernarfon Harbour Master

Caernarfon Notice to Mariners 04/2021

Mariners are advised that the the Swelly Rock South Cardinal is now lit.

53°13’.16N – 04°10’.45W

Mariners are advised that this notice hereby replaces Notice 01/2021

David John O’Neill
Harbwr Feistr Caernarfon Harbour Master

Caernarfon Notice to Mariners 03/2021

Aid to Navigation Starboard No C9 (Y Felinheli) Fl(3).G 10s is now on its charted position.

53°10’.70 N 004°13’.86 W

Mariners are advised that this notice hereby replaces Notice 02/2021.

David John O’Neill
Harbwr Feistr Caernarfon Harbour Master

Caernarfon Notice to Mariners 02/2021

Aid to navigation Starboard No C9 ( Y Felinheli) Fl(3).G 10s is off station.

Position: 53 10’.70 N 004 13’.86 W

Mariners are advised to navigate with caution in this area.

David John O’Neill
Harbwr Feistr Caernarfon Harbour Master

Caernarfon Notice to Mariners 01/2021

Mariners are advised that the the Swelly Rock South Cardinal is unlit.

Position: 53º 13’.16N – 04º 10’.45W

Mariners are advised to navigate with caution in this area.

David John O’Neill
Harbwr Feistr Caernarfon Harbour Master

Conwy Notice to Mariners 10/2020

All mariners are advised that the netting underneath the Conwy Road Bridge is loose and hanging down. Please navigate with caution.

Matthew Forbes
MSc LLB (hons) BSc MNI
Conwy Harbour Master

Trinity House Notice to Mariners 19/2020

Discontinuation of the Differential GPS Service

The General Lighthouse Authorities are planning to shut down the Differential Global Positioning System (DGPS) from 31st March 2022. The DGPS service is a land-based enhancement to GPS which was designed to increase the accuracy of the system during the period when an intentional location error was introduced into GPS to make it less accurate. This error was removed in 2000.

Please click here to read the full notice on the Trinity House website.

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