Meet favorite WTTW Kids characters including Elmo, Cookie Monster, Grover, Cat in the Hat, Arthur, D.W. and Martha from Martha Speaks and get moving with the 3K Family Walk and 5K Fun Run. WTTW members can enjoy the live pre-race performance by Ralph's World at 8 a.m. Plus, food and beverage, special activities, and a summer morning packed with fun. Registration includes an official event t-shirt, goodie bag, runner/walker number. Advanced registration closes Aug. 14. For more information, visit wttw.com/funandrun.