Student volunteers clean up Humboldt Park

CHICAGO (WLS) -- Chicago's Humboldt Park is looking a little more beautiful thanks to the efforts of hundreds of high school student volunteers from all over the United States.

They took part in a four-hour effort to clean the 200-acre park, mulch its gardens, and do some touch-up painting.

The community service project is part of the Hugh O'Brian Youth Leadership Congress that is taking place in Chicago all week long.