Ключевые слова: acid, bathing, beppu, beppu onsen, erupting, fountain, geology, geyser, hell, hell spring, hot, hot spring, hot water bath, lagoon, mineral, mist, onsen, pool, public bath, resort, smog, smoke, spa, spring, spring therapy, steam, steamy, sulphuric, sulphuric acid, thermal, thermal water, travel, vapor, vapour, volcanic, water,