Prince William and Kate Visit Skid Row
07/10/2011 AT 02:50 PM EDT
On Sunday, the final day of their North American tour, their motorcade took them to Skid Row, where they visited Inner-City Arts, which provides free instruction to children facing poverty.
Catherine, wearing a navy and white crochet top and a white pleated skirt, both by Whistles, and her husband were greeted by children carrying a banner reading, "Welcome to Inner-City Arts."
After speaking to the kids, the couple got a tour of the campus, where they tried her hands at painting alongside children.
When William asked Catherine what her red-and-green picture was, she laughed, "It's either a tortoise or a snail. I'm not sure."
Additional Reporting by KEN LEE and SIMON PERRY