MARKEATON Park and Allestree Park are both on a list of top dogging sites in Derbyshire.
The popular family destinations appear to take on a more seedy edge under the cover of darkness, according to one website, Dogging AfterDark.
The site points out the secluded car parks as being a draw for the “doggers”.
The underground practice involves people performing sex acts in cars or in secluded spots while others watch.
Those who take part claim the activity falls through a legal loophole because it is not an offence to have sex in public unless it causes outrage to a witness.
Participants often meet and share information online, and several websites contain lists of popular dogging locations across Derbyshire.
The Allestree site hit the headlines during the trial of Mick and Mairead Philpott, who had taken part in the activity in one of the car parks.
And, in 2009, Derbyshire police cracked down on the Markeaton Park site to stop doggers from using the car park.
Other areas said to be popular with doggers are Manners Industrial Estate, Ilkeston, as well as Matlock’s High Ordish picnic site.
Hardwick Park, Clay Cross; Sandy Lane, Horsley; Staunton Harold Reservoir, in Melbourne; and the old brick works site at Ripley are also said to be popular sites.
However, the site does debunk one “myth” stating that Alport Heights near Wirksworth is a “complete wild goose chase”.