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

It's our Day 6 in East Java, Indonesia and we hike the Most Acidic and One of the Most Dangerous Lake in the World, Kawah ljen Volcano. Our journey here is one of the most wonderful and mind blowing experience we ever had. #travelstories #indonesiatravel #eastjava #kawahijen | Arcee Xandrah Rain

In Indonesia’s Kawah Ijen volcano, fire burns bright blue instead of red — a rare natural phenomenon created by ignited sulfuric gas. By night, it glows like liquid lightning. By day, it disappears into smoke. A place where beauty and danger share the same flame. Watch this 15-second cinematic wonder from Project Dangerous, where Earth reminds us that even fire can surprise us. 🌋 Follow for more cinematic natural phenomena, real-world mysteries, and dangerous wonders of our planet. #ProjectDang