Lake Kawah Ijen is located in the caldera of the active volcano Ijen on the island of Java in #Indonesia 🇮🇩
The water in the lake has a turquoise hue. 💦The caldera is 200 meters deep and 1 km wide.
The lake is recognized as the most acidic in the world, as it is filled with a highly concentrated mixture of sulfuric and hydrochloric acid.
Lake Kawah Ijen is located in…
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