Ключевые слова: acid, adventure, asia, background, beautiful, blue, caldera, cloud, crater, danger, dangerous, east, exploration, fog, fumarole, gas, heat, ijen, indonesia, java, kawah, lake, landscape, miner, mineral, mist, mountain, natural, nature, outdoor, people, poisonous, rock, scenic, sky, smoke, solid, southeast, steam, sulfur, sulfuric, sulphur, summer, tourism, travel, volcanic, volcano, water, worker, yellow,