I remember that we were here at the same time the year before, and we met a Korean couple when we took the subway. Ask for directions all the way, look all the way, and find it after an hour. And because I didn't buy a ticket at that time, I didn't enter the castle. But that year, the castle underground leads to an ancient castle across the road. The stables in the basement are free to the outside world, so I was lucky to enter the underground stables to visit. The underground stables are very long and dark, and the winter snow here is heavy, so you can't walk directly on the road, you can only take the carriage from the ground and then go on the road.