The Volcano That Burns Blue 🔵 With a lake of pure acid and strange blue flames that emanate from beneath the volcano, Kawah Ijen is one of the most dangerous places to work. Yet people risk their lives to work at the crater… but why? The episode was originally posted in July 2021. . . . . #bbcearth #volcanic #indonesia #environment #nature #naturelovers #wildlife #wildlifephotography #earth #earthlovers