<h3>The glow is visible even at night.</h3>
<p>On the eastern part of Indonesia&#8217;s Java Island lies one of the most extraordinary <a href="https://mandry.club/en/interesting-facts/12-highest-and-active-volcanoes/">volcanoes in the world</a>—Kawah Ijen. Its eruptions look like a fantastical light show: instead of the usual red lava, it spews bright blue lava that glows even at night. This spectacle draws thousands of tourists, but behind the stunning visuals lies a deadly danger, as reported by Green Matters.</p>
<p><a href="https://mandry.club/wp-content/uploads/2025/08/Kawah-Ijen-1.webp"><img class="aligncenter wp-image-25704 size-medium" src="https://mandry.club/wp-content/uploads/2025/08/Kawah-Ijen-1-750x500.webp" alt="Kawah Ijen volcano with rare blue lava eruption at night" width="750" height="500" /></a></p>
<p>Photos of the &#8220;blue fire&#8221; spread across social media, attracting thrill-seekers. This phenomenon has led to a surge in &#8220;dark tourism&#8221; in the region—a term describing people drawn not by beauty but by the danger of a place.</p>
<p>In reality, this is not lava but superheated sulfur gases. When they erupt from the volcano’s crater, they react with oxygen and emit a blue-violet glow. This phenomenon is called &#8220;electronic excitation.&#8221;</p>
<blockquote class="info"><p>&#8220;I’ve never seen so much sulfur coming out of a volcano,&#8221; shared American geologist Cynthia Werner.</p></blockquote>
<p>Kawah Ijen is not just a tourist attraction but also a site of grueling labor. Here, sulfur is mined manually. Workers climb to the crater, fill baskets with chunks of sulfur (up to 90 kg at a time), and carry them to a processing plant.</p>
<blockquote class="info"><p>&#8220;Our families worry about us,&#8221; said worker Haltom, who has worked here for over ten years. &#8220;They say this job shortens our lives.&#8221;</p></blockquote>
<p>Their fears are well-founded: miners constantly inhale toxic fumes that damage their lungs. Many develop chronic illnesses after just a few years. They breathe in poisonous gases and haul heavy loads along rocky paths—all for just a few dollars. Moreover, the growing number of visitors increases the danger as the fragile ground thins and the trails become less stable. For the workers, Kawah Ijen is not a tourist landmark but a daily struggle for survival.</p>
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