Officers were called following reports of a man exposing himself in Farnham Park on Thursday, August 22 at around 4.25pm.
If you were in the park at around that time and saw what has been described as a white man, in his late teens/early 20s, wearing a black hoodie and black tracksuit bottoms, sat on a bench along the bottom of the park.
Contact Surrey Police via direct message on social media quoting PR/45240096403. Alternatively, you can make a report online via the website.
A Surrey Police spokesperson said: “We would like to remind you that, should you witness something like this or any crime in action, please call 999 straight away.”