July 12
No - I neither plan to participate nor observe. But
For the truly adventurous, Chicago hosts the annual World Naked Bike Ride, where bikers cruise through the city as bare as they dare. Full-frontal nudity is illegal in Chicago, so participants usually get creative with their scantily clad ensembles. Cyclists ride through the West Loop from 8 p.m. to midnight to promote body positivity and independence from fossil fuels.
I happened to see this advertisement in AirChicago while waiting at Midway Airport.