We heard about this attraction and saw it on TV, so if we have the opportunity to visit, we will of course go and see it. In our impression, although there are only a few cars, the road is still very crowded. At about 4pm we turned uphill with another car and followed it back to the starting point. We hung it in the air and let it slide down the slope. It was strange. It was slow, like driving on the haunted road in the movie "Resentment." We stopped by to a market to buy coffee. There was also a cafe. There were few people on the road, and there were few tourists because it was winter. Strangely, we saw a van and a bus doing the same thing and gliding down the slope. I was glad to finally have the opportunity to see and experience all this in Jeju Island. I turned the car engine off and did the experiment in the car, which was quite interesting. Some children did the experiment with water bottles, but I think this experiment is not good. (It is said that the road violates gravity, empty bottles and tanks on the road will slide quickly along the uphill direction, and cars that pull open the handbrake will automatically follow the uphill.)