Manza Onsen (万座温泉) is a hot spring resort town found 1800 meters above ocean level, high up on the slants of Mount Shirane at the northwestern edge of Gunma Prefecture. Its exceedingly acidic waters are acquired from Mount Shirane and are among the most sulfuric in all of Japan. They are known not different medical advantages through enhancing digestion system and blood course. 

     Manza Onsen has a few lodgings and ryokan with extraordinary hot spring showers. Specifically, the outdoors showers are a treat with their phenomenal waters and serene setting. Ensured snow in the winter makes the town one of the best places close Tokyo to appreciate an open air shower.