"Utsunomiya Otani Museum" Korean Underground Quarry Museum

I've hardly seen any travel itineraries introducing this place, so I decided to come and check it out, and it was surprisingly fun. The space dug out by underground quarrying is big enough to fit a Tokyo Dome. The temperature difference between underground and outside is almost 20 degrees, which is actually quite cold, like a natural refrigerator. It is about 30 meters underground and you have to walk up stairs the whole way. There is no elevator, so elderly people with poor leg strength may not be able to visit. When the new products of Dom Perregaux were launched, they also held a display here, which was very creative. Some newlyweds also held their wedding ceremony here, which was quite interesting. After the tour, there is a cute cafe next door where you can sit and enjoy delicious coffee and bask in the sun. The quiet afternoon is very comfortable.