Members of the public relied heavily on the bravery and help of the RNLI and Irish Coast Guard as the sun shone over the Bank Holiday weekend.
In Howth alone, 12 people were rescued by the RNLI between Saturday and Monday.
They included four people stranded by the tide on rocks in Balscadden bay on Sunday, and three family members on a speed boat that had mechanical problems and drifted onto Sutton strand on Monday.
Then yesterday evening, five people were left stranded by the tide out at the Baldoyle Estuary.
Noel Davidson, Howth RNLI Volunteer Press Officer said: "Our volunteer lifeboat crew are always ready to respond to a call for help and have launched 13 times in the last 20 days.
"Thankfully while some of the call outs proved to be false alarms with good intent, this bank holiday the RNLI were able to rescue 12 people from separate call outs and all were brought to safety from situations that could have been quite serious.
"Always check the tide times and conditions before you set off and while out, be aware of your surroundings and keep an eye on the tide direction. Ask for local advice and look out for safety signs.
"Always carry a means of calling for help and know to call 112/999 and ask for the Coastguard if you or someone else is at risk."
In two other separate incidents, the Dun Laoghaire branch of the Irish Coast Guard had to help the National Ambulance Service when people got into difficulty.
The first callout was to West Pier at Dun Laoghaire, where a person injured themselves while out walking.
And in Killiney, they had to help with the stretcher lift of a patient from White Rock.
