Killarney Gardaí issued a number of fines for road traffic offences at Molls Gap over the May bank holiday weekend.
Several Garda checkpoints were set up in the area following reports of cars gathering late at night.
The clampdown coincided with a Garda operation for the postponed Rally of the Lakes event.
During the operation Gardaí issued a number of fines for road traffic offences and several cars have also been scheduled to attend Castleisland Garda Station for a full vehicle inspection for possible breaches of the Road Traffic Act.
Superintendent Flor Murphy warned that people who meet up with the sole aim of performing dangerous manoeuvres in cars on the roads, will be dealt with under the full weight of the law.