Park-goers in Chorley are being encouraged to act responsibly and look after the environment by taking rubbish home with them and not disrupting neighbours late at night.
The call comes after an isolated incident at Yarrow Valley Country Park where police were called to deal with a large group of teenagers who had set up camp at the site.
Around 30 youths were talked to by officers for making noise, littering and disturbing local residents in the early hours of the morning.
Sgt Phil Kenyon, said: “Anti-social behaviour of this kind will not be tolerated and we have a number of options to deal with it including talking to parents and using legal sanctions if appropriate”.
“Yarrow Park Valley is a tidy and peaceful spot and the police will ensure it stays this way for responsible people and families to enjoy over the summer.”
Park bosses have moved quickly to remind visitors that such incidents are extremely rare and that camping is not allowed at any of Chorley Council-owned parks.
Coun Bev Murray, who oversees Chorley Council’s parks, said “Our beautiful parks are enjoyed by thousands of people each week and it’s a shame to hear of this happening at Yarrow Valley Country Park
“What we don’t want is people ruining it for others so we will be working with the police to prevent this happening again
“Although it can be appealing for people to camp out overnight this is not something that is allowed and we certainly don’t want people leaving a mess behind and disrupting those who live nearby.”