Ключевые слова: area, blue, boil, bubble, close up, colorful, crater, dangerous, desert, discover, dramatic, energy, europe, extreme weather, fumarole, fumaroles, gas, geology, geothermal, hole, hot, hverir, iceland, icelandic, icelandic nature, krafla, lake, landscape, mineral, mountain, mud, mudpots, myvatn, namafjall, namaskard, nature, nature background, north, smell, smoke, spring, steam, steaming, sulfur, thermal, tourism, travel, volcanic, volcano, zolfo,