A man exposed himself to two teenage girls at Frensham Great Pond on Thursday afternoon.
Surrey Police is appealing for witnesses after the incident, which happened at around 2.30pm.
The suspect is described as a white man in his 40s, of average build and around 5ft 10" tall. He had short dark brown hair and was clean shaven.
He was wearing a dark blue t-shirt, black shorts, and a red drawstring backpack.
The man fled the scene across the A287 to Frensham Little Pond after the indecent exposure incident.
If you saw the incident or have any dashcam or information, contact police quoting PR/45230057270 via:
- Webchat at https://www.surrey.police.uk/
- The online reporting tool at https://www.surrey.police.uk/tua/tell-us-about/cor/tell-us-about-existing-case-report/
- Calling 101.
If you do not wish to leave your name, call the independent charity Crimestoppers on 0800 555 111.