Police and council officers believe they thwarted an attempt to hold an illegal rave in Pembrokeshire over the weekend.
Officers from Dyfed-Powys Police together with Pembrokeshire County Council's Public Protection Division responded to information that an illegal event was to be held at Barafundle Bay in the south of the county.
The picturesque beach at Barafundle is consistently voted one of the best in Britain.
They immediately put into place a well-versed procedure to deal with illegal raves. This involves working closely with the National Trust, the Pembrokeshire Coast National Park Authority, farming unions and local landowners in blocking accesses and being vigilant.
Said Gareth Watts, pollution control and licensing manager with the county council: "The threat of an illegal rave came about as a result of credible information.
"With the close co-operation of other agencies, we were able to put into place very quickly the necessary enforcement and practical measures to stop it happening.
"These events are not just about loud music and the significant distress to the community, but we know from experience that they draw individuals who are looking to exploit young persons in an unsafe environment.
"With August historically being the time of year when these events take place, we would urge all landowners once again to be extra vigilant and to report immediately any suspicious activity to the police or the county council's public protection division.
"We rely on the eyes and ears of the local communities in telling us what is happening in their area ."
Police Inspector Gareth Thomas, of Pembroke Dock police station, explained: "Our main concern with this type of unlicensed event is public safety, and unlicensed events, by their nature, do not have the necessary safety features in place.
"If the worst should happen we need to be able to get emergency services to the scene, and in many coastal locations this would prove difficult.
"Together with the local authority and partner agencies, we will do all that we can to ensure that visitors to, and residents of, Pembrokeshire are able to enjoy the peace and tranquillity for which the county is renowned."