Activity
Non specific
CEND162026 Irish Sea and Bristol Channel Beam Trawl Survey
13 August 2026 15:56:32
This is an annually repeating fish stock assessment survey carrying out 108 trawl stations across ICES Zones 7a, 7f and 7g - activity carried out during daylight hours only.
Activity
Oil and gas
Survey Campaign
13 August 2026 15:53:12
Perenco UK plans to undertake geophysical and environmental survey in the Southern North Sea. The anticipated earliest start date for the proposed survey operations is 1st September 2026 through to 1st November 2026. The decommissioning survey activities will take approximately 26 days during this period and will be completed in between the vessel’s other activities.
Activity
Subsea cables
Surveys - LirIC Interconnector Project
13 August 2026 14:51:17
Mariners are advised of forthcoming marine survey works associated with the LirIC Interconnector Project. TI LirIC Limited is undertaking this survey in relation to a proposed interconnector between Kilroot in Northern Ireland and Hunterston in Scotland.
Activity
Subsea cables
Skye-Uist - Survey and Subsea Cable Installation
13 August 2026 14:04:12
Please be advised that Jan De Nul Luxembourg S.A. shall be undertaking power cable installation and power cable protection activities for the Skye-Uist Replacement project. Marine works are due to commence on 5 June, 2026.
Activity
Renewables
Galloper Offshore Windfarm - WTG Main Bearing Replacement Campaign
13 August 2026 13:59:06
Galloper Windfarm, RWE - NTM: GWF-O&M 08-2026 – WTG Main Bearing Replacement Campaign Please be advised that Galloper Windfarm will be carrying out a major component exchange from the Jack Up Vessel (JUV) WIND ENERGY on 5 locations in the north field. Planned Dates: 7th June 2026 for approximately 2 months - subject to weather An exclusion zone of 500m is required around the JUV
Activity
Renewables
Culzean - Floating Offshore Wind Turbine (FOWT) Installation
13 August 2026 13:35:16
Culzean : Floating Offshore Wind Turbine (FOWT) Installation operations will be taking place within the control area defined below and vessels are requested to avoid entering this area. Dates expected to be: 3rd to 30th of September 2026
Activity
Renewables
Culzean - Floating Offshore Wind Turbine (FOWT) Towing
13 August 2026 13:32:46
Please be advised a Floating Offshore Wind Turbine (FOWT) will be towed from Sløvåg in Norway and installed in the Culzean Field. The tow is expected to start on the 25th August and continue until 3rd September.
Activity
Oil and gas
Subsea Well Investigations for Minerva M1 & Mercury MY02
13 August 2026 11:35:16
Perenco UK Limited is undertaking a subsea well investigations and inspections campaign on Minerva M1 and Mercury MY02, utilising the Wagenborg Kingsborg as the Diving Support Vessel (DSV).
Activity
Renewables
Sofia Offshore Wind Farm - Demarcation / Met-Ocean Buoys
13 August 2026 11:16:47
All Mariners are advised that circa. 5th September 2026 until further notice, the FCS Vega and Kingdom of Fife will be undertaking infield buoyage service inspection works as required at the Sofia Offshore Wind Farm Array. Mariners are advised of Seabed Met-Ocean Buoy Moorings that remain in place at SOWF (Excluding Buoy) and are yet to be recovered. Note: these locations are to be avoided by at least 200m.
Activity
Renewables
Sofia Offshore Windfarm - Offshore Converter Platform Commissioning Works
13 August 2026 11:05:14
Mariners are advised that the Valaris 248 is positioned alongside the Offshore Converter Platform supporting the ongoing commissioning programme. The Service Operations Vessel (SOV) Rem Energy continued and completed operations.
Activity
Oil and gas
Garrow - Decommissioning
13 August 2026 11:02:42
The OBANA Heavy Lift Vessel (HLV) will be located alongside the Garrow installation to facilitate the removal of the Garrow topside and jacket structures.
Activity
Renewables
Wind Turbine Generator Commissioning Works - Sofia Offshore Wind Farm
13 August 2026 10:59:31
SGRE Vessels “FOB Swath 9” & “FOB Swath 10” continue with WTG commissioning activities within the Sofia array.
Activity
Non specific
Irish Sea - Sediment sampling and seabed lander deployments
12 August 2026 17:17:36
The RRS Discovery will be conducting sediment sampling with box core, multicore and SPI camera, and sampling the water column behind a chartered fishing vessel in 4 sites during July and August. An instrumented seabed lander will also be deployed at each of the 4 sites for up to 5 days. These sites are fishing grounds and close to some navigation routes. The RRS Discovery will have restricted manoeuvrability during these operations.
Hazard
Fishing restrictions
Irish Sea - Instrumented Seabed Lander
12 August 2026 17:15:50
The RRS Discovery has deployed an instrumented seabed lander on 08/08/2026. This lander presents a hazard to towed fishing gear and requested an exclusion of 500m around the lander location for any trawling or dredging.
Hazard
Subsea cables
Celtic Interconnector - UPDATED NOTICE
12 August 2026 17:11:04
Updated: 10/08/2026 The operations in this Marine Notice reflects an update to the activities associated with Marine Notice No. 47 of 2025 (Amended 07/05/2026), in relation to cable lay activities and Support Vessels on the Celtic Interconnector project. Please see the below update to the Celtic Interconnector project and marine operational works in Irish waters.
Hazard
Oil and gas
NEP Confirmed Unexploded Ordnance No. 9 - Clearance Notice
12 August 2026 16:23:21
Mariners are advised that the ninth confirmed Unexploded Ordnance on the boundary of NEP Pipeline Construction Area Block 5 has been safely decommissioned using low order clearance (position below) The UXO is no longer a hazard.
Hazard
Oil and gas
NEP Confirmed Unexploded Ordnance No.10 - Clearance Notice
12 August 2026 16:21:36
Mariners are advised that the tenth confirmed Unexploded Ordnance on the boundary of NEP Pipeline Construction Area Block 5 has been safely decommissioned using low order clearance (position below) The UXO is no longer a hazard.
Hazard
Oil and gas
NEP Confirmed Unexploded Ordnance No. 8 - Clearance Notice
12 August 2026 15:55:35
Mariners are advised?that the?eighth confirmed Unexploded Ordnance within?the NEP?Pipeline Construction Area?has been safely decommissioned using low order clearance. The UXO is no longer a hazard.
Hazard
Oil and gas
NEP Confirmed Unexploded Ordnance No. 5, 6, & 7- Clearance Notice
12 August 2026 15:52:45
Mariners are advised that the Northern Endurance Partnership (NEP) cUXO No. 5,6&7 have been decommissioned using low order clearance and are no longer a hazard
Hazard
Oil and gas
NEP Confirmed Unexploded Ordnance No.3 - Clearance Notice
12 August 2026 15:46:33
Mariners are advised that cUXO No.3 has been decommissioned and is no longer a hazard.
