University of Wisconsin-Madison police said taggers have caused more than $1,500 in damage to Picnic Point.
UWPD was contacted by campus staff on Wednesday about graffiti at Picnic Point, according to a release.
Officers said there are multiple tags sprayed on one of the fire pits.
Damage is estimated to be more than $1,500.
Police believe the tagging happened sometime between Tuesday afternoon and Wednesday afternoon.
Officials ask anyone with information or anyone who saw anything suspicious in the Picnic Point area during that time to call UWPD at 608-264-COPS.