The hunt is on for a group of teenagers who held what's being called a 'Mini Glastonbury' on a protected beach in Co Kerry.
Rubbish, human waste, condoms, smashed glass and broken tents were left behind at Derrynane National Park after the August Bank Holiday weekend.
Credit card receipts and gym passes found in the debris have now been passed onto Gardai and they are liaising with the Office of Public Works.
Susan Keogh has been speaking to local resident Ross Duffy - who was one of the first people to come upon the mess.
A Facebook page has been set up to raise awareness about the issue but Ross says those involved are not taking the matter seriously.