Category: Safety

All mariners are advised that there is a sunken yacht on a mooring adjacent to Deganwy Marina entrance.

Co-ordinates 53°17.43N 003°49.76W

All mariners are advised to exercise extreme caution in this area.

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

Mariners are advised that this notice herby cancels Notice 08/2025.

David John O’Neill
Harbwr Feistr Caernarfon Harbour Master

Y Fenai – Siart 1464 – Menai Strait – Chart 1464

Two mooring buoys will be situated surrounding Swelly Rock from 13:00 on the 21/3/25 until a cancellation Notice to Mariners is issued. These are to allow access for routine repairs works to the AtoN. The moorings are not suitable for use and Mariners are prohibited from making use of the moorings.

Mariners are advised to navigate with caution in this area.

David John O’Neill
Harbwr Feistr Caernarfon Harbour Master

Y Fenai – Siart 1464 – Menai Strait – Chart 1464

Mariners are advised that the vessel Seven Guardian will be undertaking a small-scale scientific survey (grab sampling) between the dates below in the Caernarfon Bay Area including the approaches to Caernarfon. Sampling will take
approximately 2 days and will involve lowering and retrieving a small sediment grab sampler at locations across the bay from Porthdinllean to around the Caernarfon Bar.

Survey work: Caernarfon Bay benthic survey
Survey Period: 31/03/2025 – 18/04/2025
Survey duration: 2 days
Time on station: 15-60 mins
Sample locations: attached
Survey Vessel: Severn Guardian

This Notice is only valid for the above dates.

David John O’Neill
Harbwr Feistr Caernarfon Harbour Master

Cancellation of No 24 (2024) and No 25 (2024) Local Notice to Mariners

All mariners are advised that C2 is back on station.

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