A Whoville Celebration is held in Grand Rapids, Michigan, at Riverside Park. This event features Whoville characters, Santa, a Whoville 5k, and a Kids Run. The Whoville 5k is described as a themed experience rather than a competitive race, with no official results. Participants can enjoy Whoville hats, a costume contest, cookies, and hot cocoa. All proceeds from the event benefit the Down Syndrome Association of West Michigan.