In East Java, Indonesia, the massive Kawah Ijen volcanic complex spans over 22 kilometers. However, it is best known for its rare "blue lava," which results from the combustion of sulfur gases that are released from the earth, creating an otherworldly glow.

https://video.nostr.build/9b016f3ce33220ce2afa37979b8f0282292b8ca4d7315280754128e31fc6b3ad.mp4