Ecological surveys by Natural Resources Wales will take place in St Brides Bay between the 29th June and the 16th July 2026
- MARINERS ARE HEREBY ADVISED that, ecological surveys by Natural Resources Wales will take place in St Brides Bay between the 29th June and the 16th July 2026.
- Benthic grab samples will be taken by the vessel “Severn Guardian” which will maintain a listening watch on VHF channels 16 during operations.
- The surveys will take place at the following approximate sample locations:


- Mariners are required to navigate with caution in these areas.
- For details of the surveys and whereabouts of the craft, please contact “Severn Guardian” on VHF channel 16.
- Admiralty charts including 1178, 1478 refer.
- This notice will self-cancel at 2359hrs 16th July 2026.