Police are investigating an incident of criminal damage to a boat moored in Douglas inner harbour near to the Douglas Hotel.
The boat was entered between Friday and Monday and equipment damaged onboard.
Police are appealing for any witnesses who may have seen suspicious activity around that area between those times or who knows who boarded the boat to contact the police on 631212 or alternatively Crimestoppers on 0800 555111.
Police reminded boat owners to make sure all items of value onboard are safely secured or removed when not in use.