Swimmers are being warned of the possibility of an increase in the levels of bacteria in the water at 2 Dublin beaches.
Fingal County Council has issued a 'Prior Warning Notice' for Velvet Strand, Portmarnock and Loughshinny Beach which remains valid for a six-day period.
The council says a water sample is due to take place on Thursday, and results will be available on Saturday.
It's advising that for now people avoid swallowing water, avoid swimming with an open wound, and don't swim if you are pregnant or have a weakened immune system.
