The Michigan City Mainstreet Association presents Chalk Walk in the Uptown Arts District on Saturday, July 12 from 10 a.m. to 2 p.m. Join merchants in the Uptown Arts District for this awesome day. Come walk with friends and family to chalk up the sidewalks at various locations, grab a beverage, check out sales, or just be entertained by the many volunteers chalkin' the walks during this event on July's Second Saturday. Chalk-Out!