Ключевые слова: acid, ancient, antique, area, asia, bath, beautiful, bubbling, famous, flowing, gunma, gunma prefecture, health, heat, hot spring, hot water, hotel, japan, japanese, kusatsu, kusatsu gunma, kusatsu onsen, mineral, natural, nature, old, onsen, outdoor, relax, relaxation, resort, rural, rural scene, sightseeing, spa, steam, sulfur, sulphur, tourism, tourist, tourist resort, tradition, traditional, travel, trip, water, wooden, yubatake, yubatake onsen,