Trekking up three volcanoes in Java

At 2am, you begin the trek up. Once you reach the Ijen plateau, you stand and look down at the dazzling, electric-blue fire. This comes from the burning of sulphuric gas, which emerges from cracks of the Ijen volcano. As the sun slowly rises, the site looks even more surreal, as the turquoise blue lake there unfolds.The lake is the site of a labour-intensive mining...

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