About two hours away from tokyo station by shinkansen bullet train or bus guests can enjoy gunma prefectures natural beauty from the comfort of their guest rooms each featuring an open air rotenburo onsen outdoor hot springs that flows directly from its source situated at the foot of the majestic mount tanigawa one of the 100 famous japanese mountains the expansive senjuan ryokan is a must do experience for spa lovers a member of frances relais chteaux association of excellence