A notice to mariners has been issued over a sonar survey taking place on the Isle of Cumbrae.
A sonar survey will take place in Millport Harbour from 20th February for up to four days.
The Harbour Master said: "Vessels must not be moored at the pier during this time.
"Vessels currently moored are advised to be moved in order to facilitate the survey."
Further information available from North Ayrshire Council on 01294 310000.
Cumbrae Coastguard have also been alerting mariners to the notice on their social media channels.
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