Located in Banyuwangi, Ijen Crater is known for its impressive acidic crater lake, one of the largest of its kind in the world. This destination is particularly famous for the “Blue Fire” phenomenon—a rare natural light that appears in the form of blue flames due to ignited sulfuric gases, visible only at night. Trekkers usually start their climb around midnight to reach the crater by dawn, where they can witness this extraordinary blue glow. After sunrise, the view of the turquoise crater lake, surrounded by rugged volcanic cliffs, creates a surreal experience. This demanding trek requires good stamina, but the unique views make it unforgettable.
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