Lincolnshire Police are asking residents to help find a man who exposed himself in south Lincoln.
The incident happened at around 1.50pm on Wednesday, August 28 in Swanholme Lakes, which is off Doddington Road.
The man exposed himself to a woman, who was walking through the park.
He is described as in his mid to late 20s and between 5ft 8in and 6ft tall, with short brown hair.
He was wearing blue shorts, a dark blue t-shirt and bright green trainers.
To give information on this incident call Lincolnshire Police on 101, or Crimestoppers anonymously on 0800 555 111.