My husband and his buddies are crazy. Not only did they jump on their scooters in the FREEZING cold, but they rode until they met barriers and machine gun toting guards at the DMZ line (Demilitarized Zone).
Like I said, crazy.
Every year, a group of teachers (the Hill's Angels) from our school jumps on their scooters in the dead of winter and rides as a group to the Demilitarized Zone (DMZ) 40 km north of our school.
They ride until they get turned back by ROK guards with machine guns (they're nice though).
Doug doesn't have a fancy scooter or motorcycle. In fact, I was worried his bike wouldn't even make it that far (usually it's used for getting the store and avoiding Seoul's traffic by weaving in and out of cars and running red lights). His scooter even got a nickname- The Banana.
After getting stopped at the border, they visited a war memorial with some tanks on display, and then headed back into the next town to eat at Dunkin' Donuts (gotta love capitalism).
You can also go to this link and see a video of their run.