Escape to the outskirts of Tokyo into Gunma Prefecture where Kusatsu Onsen (the greatest producer of mineral water in Japan) lies. With just an hour via the Shinkanzen, you can find yourself among the valleys at 1,200m above sea level. Rejuvenate in the mineral water acclaimed for its medicinal healing powers. Stroll around Yubatake, an important landmark that resembles a giant onsen controlling the temperature of the spring water, allowing it to be consumed in the people's daily lives. As you walk along the fences, you will see the names of famous people who have come to visit it. Slow down in an old town atmosphere, with a hint of European influence. During the night, behold the spectacular Illumination there.