There's a lack of Lifeguards throughout the country - including in Cork.
Nationwide, this Bank Holiday Monday not all lifeguard stations will have life-saving staff on duty.
The Cork County Council Beach Lifeguards plan to be on duty during the weekends in June, full time in July and August, and for the first two weekends of September - between 10.30am and 7pm.
However, they are warning the public that lifeguards may not always be present due to a staffing shortage.
A red-over-yellow flag means the lifeguards are on duty.
For up-to-date information on lifeguarded beaches, see Cork County Council's Beachlifeguards Facebook page.
Water Safety Ireland is appealing to people not to take risks when getting into the water.
Roger Sweeney from Water Safety Ireland has this advice if you see anyone in trouble in the water:
"Remember three words: shout, reach and throw.
"Shout - to encourage somebody back to shore. Sometimes that's all it takes to orientate them back.
"Reach - is to reach out with something, such as a stick or a piece of clothing. Don't get into the water unless you have life saving skills.
"Throw - is to throw a ring buoy or indeed anything that floats.
"That's all that's needed to bring somebody back to shore. Make sure that you get somebody to call 999 or 112 and ask for the Coast Guard".