On the afternoon of Thursday 18 August 2016, two women reported to staff at Harlow Carr Gardens that they had seen a man committing a lewd sexual act in the woods nearby.
Detectives are appealing for these two women to come forward and anyone else who may have seen the man.
Officers are linking this incident with a similar incident in the same area on 2 June 2016.
Members of the public are advised to be vigilant when they are in the area and report any suspicious activity to the police on 101.
Anyone with any information about this latest incident is asked to call North Yorkshire Police on 101, select option 2 and ask for Harrogate Investigation Hub. Or email firstname.lastname@example.org
If you wish to remain anonymous, you can pass information to Crimestoppers on 0800 555 111.
Please quote reference number 12160149262 when passing on information.