For further details and to RSVP, visit the Facebook Event Page. From that page:

Ok, here it goes, the first annual Zombie Joliet Thunder Run…….what it entails……a bus load of zombies crashing a multitude of bars in Joliet………Requirements…………You must be Zombified, $20.00 for the bus trip, and cash for drinks, 21 years of age, the ability to survive or “not survive” the evening. A bus trip from bar to bar in the Joliet area where we are Zombified and wreaking havok among people that are expecting a lovely evening with friends. The bus will be provided as long as we have enough Zombies willing to provide. List of bars will be provided at a later date.