Festival fans have faced delays of up to an hour and 45 minutes just to start moving out of car parks at All Together Now.
Posts on social media show long lines of beeping cars, with people saying they're still waiting to move.
There was criticism on Friday after thousands of drivers found themselves stuck in cars for hours, as they waited to get into carparks at the Curraghmore Estate in Waterford.
Lauren Beehan from AA Roadwatch says Gardai are advising there's been a change to the exit routes for those leaving or collecting others today.