Ключевые слова: active, blue, campi, campi flegrei, color, crater, energy, eruption, europe, flegrei, fumaroles, fume, gas, geology, geothermal, geyser, hot, inactive, italy, landscape, lava, mountain, naples, napoli, natural, nature, nobody, outdoor, park, pozzuoli, rock, sky, smell, smoke, solfatara, spring, steam, steaming, stone, sulfur, sulphur, travel, tree, valley, view, volcanic, volcano, vulcano, white, yellow,