Ijen Crater
Ijen Crater, located in East Java, is famous for its mesmerizing blue fire and acidic turquoise lake. Tourists hike in the early hours to witness the rare blue flames, created by ignited sulfuric gases. The crater is also home to traditional sulfur miners who carry heavy loads up steep paths. A trip to Ijen offers both a unique geological wonder and insight into human endurance. It’s a top destination for night hikes and volcanic landscapes.