Kawah Ijen Volcano, home to the iconic Mount Ijen Crater Lake and its mesmerizing ‘Blue Fire’ phenomenon, is a natural wonder that draws adventurers to East Java from around the world. The highlight of Kawah Ijen is undoubtedly the otherworldly Blue Fire, a rare occurrence that emerges from the depths of the crater, casting an enchanting blue glow. After a tough trek through the night, you venture into the heart of Kawah Ijen, to find the ethereal beauty of the turquoise acidic lake, the rugged volcanic landscape, and the unique sight of sulfur miners toiling in this dramatic environment.