COLOR RUN!!!!

Do any of you ladies do the color runs??? Does anyone know if Color Runs are safe when pregnant? I won't be running but I do want to do a fast walk if possible. But there's one in Washington, DC and Baltimore, MD in May and I don't want to miss them like last year. Have any of y'all ever done the Color Run while pregnant? Or know anyone who has? I'll be 7 months by then