Four boys were reported by police after they were seen entering a property at the Lincoln Cove Marina on Tuesday.
Just after 4.30pm, a marina resident reported seeing the four boys swim across the marina and enter a neighbour’s property.
The boys were discovered by the owner opening cupboards and going through contents on a boat before they swam back across the marina to where police were waiting.
The four boys aged 11 and 12-years-old were all reported for being unlawfully on premises.
They will be referred to the juvenile justice system.