Jeju is almost the routes around the island, there will be occasional trails, which is similar to walking and playing trails. You don't need to find occasional trails. When you visit a scenic spot in Jeju, you may have inadvertently set foot on the occasional trails. When I go to the columnar joint belt, I walk from the park to the station. After passing by, I realize that there will be occasional small buildings in the road. Ordinary roads add some highlights, along the occasional path has been moving forward, there will be many surprises.