It leaves Grand Rapids at midnight, hence the title.
I met them at there first or second stop in 2001, and it was something to see half of a Walmart parking take 45 minutes to empty...also seeing that many bikes at night ahead on the freeway.... Used to be a couple of thousand or more, not sure about now...
I had a snowmobile suit on and was still cold. That plus I had been up all day and was getting tired, so I turned around, found a gas station, and crashed until daylight.
My wife and I have went up with a group to the bridge the day before a couple of times, and watched them show up in the morning...