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MARINE NOTICE, No.69 of 2014
All Navigations
Danger to Swimmers
Waterways Ireland wishes to advise masters, owners and all other users of the navigations that it is prohibited to swim in the vicinity of harbours, quays, jetties and within 200m of locks, weirs, bridges and other navigation infrastructure because of the dangers associated with vessels manoeuvring. Also, a fast current is to be expected adjacent to locks, weirs and bridges which will pose a danger to swimmers.
Masters should keep a sharp look-out for swimmers in the water especially on the approaches to harbours and to manoeuvre their vessel accordingly.
Charles Lawn, Inspector of Navigation, 18 Jun 2014