People enjoying Christmas swims and other water activities have been urged to stay safe and to avoid dangerous locations such as flooded rivers.
Irish Water Safety said the dangers presented by water were "never more apparent", with several recent tragic drownings and a run of floodwater that has yet to subside.
"We are now only days away from the traditional influx of people at Christmas who seek recreation on the waters and in the mountains of Ireland as a means of getting out and about," said IWS chairman Frank Nolan.
"Therefore, the public must be aware of the dangers associated with being involved in outdoor activities and must take reasonable care for their own safety at all times."
He urged people using the sea, rivers or lakes to be mindful of water safety and to ensure their own safety and that of any passengers under their care.
"It behoves us all to avoid dangerous locations which could result in having to be rescued by the Rescue Services in this country," Mr Nolan said.
"At this time of year the number of visitors to waterways nationwide and indeed to waterside shops, pubs and restaurants increases dramatically and so the risk by persons in transit due to accidental drowning also increases.
"Alcohol consumption over the Christmas is a major factor adding to drowning accidents especially if people are in close proximity to water on piers, quays, jetties, canal walks, riverbanks and coastal locations."
Mr Nolan urged people to be particularly vigilant for the safety of children when close to any waterway.
IWS also asked anyone using the water for sports activities or fishing to wear personal flotation devices (PFDs).
Two people recently drowned in separate incidents when they were swept out to sea by large waves while fishing on the Co Clare coast.