As Dublin enjoys the strong sunshine, extra Gardaí are on patrol around Portmarnock.
This time last year, there was a "mini riot" on the beach as students celebrated the end of exams.
It’s the hottest day of the year and the beach in Portmarnock is thronged with young and old alike.
But there are Gardai on patrol here, making sure there’s no underage drinking.These girls had their bags searched as they got off the bus earlier.
These people enjoying the weather are happy with the Garda presence.
Temperatures aren't expected to be as warm tomorrow, but people are being reminded to only swim where there's a life-guard on duty.
