If you're planning to head to the lakefront tomorrow, be warned of two major events that may affect your plans. The Banco Popular Chicago Half Marathon will close Lakeshore Drive going south from the Bronzeville area to East 67th Street throughout the morning, with a post-race festival taking place in front of the Museum of Science and Industry. Cyclists from the Boulevard Lakefront Tour will be biking along the path as far south as Hyde Park, with their post-event fun taking place on the Midway Plaisance.