Everyone should experience the green river at least once. It doesn't last long so make sure to be there a few minutes early from a prime viewing spot. It's also close enough to walk to Columbus Avenue St. Patrick's day parade at noon.
Dyeing of the Chicago River
Chicago River at Michigan Avenue and Wacker Drive
Sat Mar 15
Time Out says
Posted: Tue Feb 11 2014
The Journeymen Plumber’s Local Union 130 has the honor of greenifying the Chicago River before the downtown St. Patrick's Day Parade. The dye is fish-friendly, and the river returns to its usual murky shade by nightfall.