I have been informed by Waterways Ireland that while it has not determined a need for an associated penalty with this by-law at this time, the matter is being kept under review. I am advised also that the locks, docks and harbours are manned and/or frequently visited by Waterways Ireland Operations and Inspectorate Authorised Officers. Where swimmers are encountered, they are made aware of the by-law provision and the dangers of swimming in or near canal infrastructure and they are requested to remove themselves from the navigation. Such requests are normally acceded to. In the event of persistent offender(s) unwilling to obey direction from Waterways Ireland Authorised Officers, the assistance of An Garda Síochána is sought to remedy the situation.