Water Safety Ireland is appealing to swimmers and people taking part in water activities to take extra care over the festive season.
It follows the death of a swimmer in his thirties earlier this week at the Hawk Cliff bathing area on the Vico road in Killiney.
The Irish Coastguard were alerted on Wednesday afternoon, and Dun Laoghaire RNLI arrived at the scene and took the swimmer from the water to Coliemore Harbour, where medics were waiting.
But efforts to resuscitate the man failed.
Tesla Opens Wicklow Supercharger Station Adding Eight High-Speed Stalls
Almost a Third of Road Deaths Involve Young Drivers, Wicklow Gardaí Warn Ahead Of Bank Holiday
Garden County Housing Figures Buck National Trends
Outpouring Of Love And Tributes to Musician Glen Hansard
Wicklow Beaches To Host Kids Sea Safari Workshops In August