Karuizawa is a Japanese summer resort. Karuizawa is located in the southeast of Nagano Prefecture, on the hillside of the shallow mountain. Surrounded by shallow mountains, nose curve mountains, ice ridges and other peaks, it is located in a cool summer climate, about 1000 meters above sea level, here larch and birch trees are lush, natural environment is pleasant, so from the end of the 19th century as a representative summer resort in Japan development To date, it is the most famous luxury villa area and high-class community in Japan. It is legendary that the emperor is here to meet his lifelong companion.