Ключевые слова: boiling, fog, fountain, geography, geological, geology, geothermal, geyser, heat, hiyori, hokkaido, hot, hotspring, japan, jigokudanai, lake, landmark, landscape, mineral, mountain, national, natural, nature, noboribetsu, onsen, oyunuma, park, pond, scene, scenery, scenic, shikotsu, spring, steam, sulfur, sulfurous, sulphur, thermal, tourism, toya, travel, valley, view, water,