Ключевые слова: area, blue, boil, boiling, bubble, contrast, cracked, crater, crust, crystals, dangerous, detail, dramatic, dry, energy, field, fog, fumarole, gas, geology, geothermal, ground, hole, hot, hverir, iceland, krafla, landscape, minerals, mist, mud, mudpot, multicolored, myvatn, namafjall, nature, orange, smell, soil, spring, steam, stinking, sulfate, sulfur, sulphate, texture, thermal, volcanic, volcano,