Lambton OPP are looking for witnesses to an indecent act that happened on Canada Day in Grand Bend.
Police were called to the splash pad on Government Road around 3:45 p.m. for reports of a man acting inappropriately.
A 22-year-old Waterloo man is charged with indecent exposure to a person under 16, and committing an indecent act in a public place.
The accused will appear in Sarnia court at a later date.
Anyone who witnessed the incident is asked to call Lambton OPP or Crime Stoppers.