Complete NTM 15/23

Latitude   55º 37.593’N                                                        Longitude 006º 12.223’W

WGS 84 Datum                                                                      WGS 84 Datum




Mariners are advised that from 1 March 2023, surveyors Aspect Land & Hydrographic Surveys will be undertaking a high-resolution bathymetric survey of Kilnaughton Bay and Loch Leodamais, Port Ellen, Isle of Islay.

The work is still expected to be completed within two weeks and will be undertaken from survey vessel Marine Sensor.




Communication will be maintained with CalMac Ferries Ltd, and others as required via VHF radio throughout all survey works. Surveys will be completed between sailings of the scheduled ferry services to avoid any disruption.

All vessels navigating in the vicinity of Kilnaughton Bay and Loch Leodamais during this time are requested to maintain a lookout for the survey vessel and pass at a safe distance and speed to minimise the effects of wash on the vessel.

Unless otherwise promulgated, information regarding the current status of CMAL NTMs can be found at where, if the NTM is still marked as ‘Active’ it remains in force.



Further details can be obtained using the contact details below.


Issued on behalf of the Harbour Master

Caledonian Maritime Assets Limited


Categories: Notice to Mariners