Mount Ijen is globally renowned for its rare electric blue fire phenomenon and turquoise acid crater lake. Hikers trek under the stars to witness the sulfur fires and observe traditional sulfur miners at work at the edge of the crater.
Mount Ijen is globally renowned for its rare electric blue fire phenomenon and turquoise acid crater lake. Hikers trek under the stars to witness the sulfur fires and observe traditional sulfur miners at work at the edge of the crater.