National Geographic Travelのインスタグラム(natgeotravel) - 6月5日 23時56分

photo by @andrea_frazzetta // Flying over the Ijen crater - swipe to see the full image - Mount Ijen, on the Island of Java, Indonesia, hosts one of the last remaining active sulfur mines in the world. Since 1968, the sulfur miners have ventured into this unpredictable labyrinth of gas clouds and superheated fumaroles to extract “devil’s gold” and carry it back down the mountain. Ijen’s half-mile turquoise crater lake takes on an eerie glow in the darkness. Deceptively beautiful, it has a pH lower than that of battery acid—the largest acid lake on Earth, caustic enough to dissolve metal. “Sulfur Road” my latest assignment for National Geographic is online, check it on NatGeo website and follow @andrea_frazzetta to know more about this story #natgeotravel #ijen #java #indonesia #sulfur #miners

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