Ключевые слова: acid, active, adventure, asia, asian, basket, breaking, caldera, collecting, crater, culture, danger, dangerous, destinations, exotic, exploration, extracting, extraction, gas, ijen, indonesia, indonesian, java, job, kawah, labor, landmarks, manual, mask, masked, men, miner, mining, noxious, people, poisonous, smoke, solid, southeast, sulfur, sulfuric, sulphur, sulphuric, tourism, toxic, travel, volcano, work, worker, yellow,