It has been claimed there has been a rise in cases of public sex at Dollymount Strand in Dublin.
Details of "suspicious" and "weird men" have been chronicled in logbooks compiled by lifeguards.
They have also recorded a rise in underage drinking and incidents of people being pricked by used needles.
Chair of Dublin City Council's policing committee, Daithi de Róiste, plans to raise the issue at the next meeting.
Mr de Róiste said: "Operation Irene is in place right across Dublin to target anti-social behaviour in our parks and on our beaches. It's obviously failed here and I do think we need to be raising this at the next committee to be looking for updates.
"It's not good enough for ordinary Dubliners going out to use the beaches, whether it's on walks etc, and coming across drug paraphernalia and things like that."
According to the Irish Mirror, one woman reported to lifeguards in August last year that she had been followed into the sand dunes by a “suspicious” man in his 40s. She said he had been looking at her from some bushes when she arrived at the beach.
Another woman reported encountering a “weird” man on a road near the beach later the same day, while gardaí were called and told a man to leave the area following a similar report in September.
“12.55pm Woman presented with needle that she stood on. Wound cleaned and covered. Advised to seek further medical attention and agreed to do so. Panic in patient due to pregnancy.”
“Syringe prick 7pm”
“Man accused of looking at little girl changing, father of girl threw water on [the man].”
“Reports of two males in dunes without clothes engaging in sexual acts. Approached and asked to move on. One failed to do so and cycled down the beach. Gardaí were called about the incident and informed when the men left the beach.”
“Informed of a male collapsed [on] rocks approx. 100m left of Station 1. Patient was unconscious upon arrival – not pain or voice responsive. When [he] came around [he] complained of chest pain. Found out patient had been drinking heavily. Handed over to paramedics and removed by ambulance.”
“Path beside golf course half way up. Needle sticking up. Needle found.”
“Man acting suspicious. Report at 2.15pm. Approx 40yo. Followed a lady and proceeded to dunes, lady concerned and went to lifeguards to notify. Lady arrived at beach at approx 1.15pm and male was in bushes on causeway, looking out.”