Kawah Ijen: The blue fire volcano - What kind of fire burns blue in the dark? How can a lake be more acidic than battery acid? Deep inside Indonesia’s Kawah Ijen volcano, nature creates a spectacle few have ever witnessed. According to Geology.com, the glowing blue flames and acidic waters are real — and far more dangerous than they seem. But what lies beneath the surface of this volcanic giant? | The Brain Maze

19K views · 1.2K reactions | Sometimes it’s good to have the blues  The electric-blue light from the Kawah Ijen volcano in Indonesia is visible only in the darkness. #ParadiseIslands | National Geographic TV | Facebook

📍Blue Fire, Ijen Volcano, East Java, Indonesia. A 2 AM, 9.7 km, 612 m, out-and-back trek/scramble to see this! #ijen #volcanohike #eastjava #indonesiaadventure #canadiancreators #travelcreator | Fuel For The Sole Travel, Outdoor & Adventure

40K views · 968 reactions | Trekking up Ijen Volcano in Indonesia is worth it for this view  | UNILAD Adventure | Facebook