Three people were arrested and four people taken to hospital after a fight broke out at the 40 Foot in Dublin last night.
It happened at the popular swimming spot in Sandycove at around 8pm.
The people arrested were taken to Dun Laoghaire garda station for questioning, and have since been released.
Gardaí say that the four people who were hurt were taken to St Vincent's Hospital for treatment. Their injuries are not believed to be life-threatening.