A man exposed himself twice over the weekend to women walking on the popular hiking and dog-walking spot, the Teversal Trail.
The first incident occurred on Saturday (October 25) when the man exposed himself to a woman near to a wooded area in the early afternoon.
This was followed by a similar offence on Sunday (October 26) when a man exposed himself to a woman walking her dog and then became verbally abusive on a footpath leading from Buttery Lane towards Pleasley.
The man is described as being in his late twenties, of medium build and 5ft 10 in height with mousy blond hair.
He was wearing a baggy grey and turquoise hoody underneath a grey top, grey bottoms and trainers with a lime green flash on the side.
The man is thought to be sleeping rough in the area.
Anyone with any information should contact the Police as soon as possible on 101 quoting incident number 667 of October 26.
The Taversal Trail is a four mile long circular route, a former railway line not used since the mid 1900s, on the Nottinghamshire-Derbyshire border.