FOUR people were hospitalised with stab wounds after a fight broke out between two groups at the popular Dublin swimming spot, the Forty Foot at Sandycove.
Up to twenty people were involved in the row and the injuries sustained included a broken jaw.
The injured included three men and one woman.
Three people were arrested, but later released by Gardai.
It is understood one of them will appear in court at a later date on public order offences.
Two groups of young men, from Crumlin and Eastwall, went to the Forty Foot by DART after a day drinking in the sun.
When a row broke out bottles were broken and used as weapons as horrified swimmers fled.
Local Fine Gael TD Mary Mitchell O’Connor described the incident as frightening and said that the Gardai would be keeping a strong presence in the area.
Labour Councillor Jane Dillon Byrne said she had been swimming there an hour before the incident at 8pm.
“It’s been building up to this. One can see the groups coming in with tray loads of cans,” she said.
The Forty Foot is a historic Dublin bathing spot and has been used for the last 250 years.
It was traditionally an all male venue where men could swim naked, but that changed in the 1970s when women and children were allowed to swim there too.