You didn't visit Jeju if you haven't pass this road. Near the Jeju Alive Museum, this road is located at Dokkaebi Road. I suggest you to visit this road by using car, so you could feel by yourself how magical this road. Locals called it Dokkaebi Road because objects on tis road seem to defy the laws grafity. As you can see at the picture below, it looks like the cars are going puhill, but in fact it just neutral gear and foot off accelerator, cars can actually go uphill on this mysterious road.
This mysterious road has a downward slope of 3 degrees but appears to be uphill because of the higher surroundings. This mysterious road only stretches for about 100 meters and clearly marked by a signpost at the start.
As I said before, better you drive by yourself to pass this road and put your gear to neutral and release your foot off the accelerator at the starting point marker and see how your car moves up hill. Watch this video to feel the excitement:
Video by Rick Such
After 100 metres away, another signpost indicates where this stretch of the Mysterious Road ends. Then you have to drive normally with your foot on the pedal.
This mysterious road in Jeju Island is one of the numerous magnetic hills scattered around the world. A slight downhill slope appears to be an uphill slope due to the seemingliy high surrounding, creating an optical illusion that object roll uphill. Anyway, you can demonstrate the "magic" of the Mysterious Road by pouring water on the road, so you can see the water flowing uphill.
So guys, for you who want to visit Jeju Island, you must pass this street and feel the mysteriousity. Here are some tips before you go: