An idyllic country park was taken over by large groups of young drinkers yesterday.
Police were called to Crawfordsburn Country Park near Bangor to break up large groups of drinkers as families and residents tried to enjoy the bank holiday sunshine.
There have been similar incidents in recent years in the area and local councillors have called on the police, the council and Translink to work together to try to stop the problem.
Alliance councillor Andrew Muir said: "Following incidents in previous years, I am disappointed to learn police were again required to deal with disorder at scenic attractions like Crawfordsburn and Helen's Bay.
"I visited Helen's Bay beach late afternoon and was glad to witness a visible police presence and mostly families enjoying the sun, following earlier trouble.
"I hope this can remain the case over the days ahead with everyone able to enjoy the good weather without disturbance.
"A continued proactive response from statutory agencies is vital to ensure no further trouble."
DUP councillor Stephen Dunne said: "It's very concerning but this is a recurring problem during periods of good weather.
"We need a multi-agency approach to try and deal with it more effectively."