ijen volcano in east java contains the world's largest acidic volcanic crater lake, called kawah ijen

acid acidic anesthetized basket called carriers citizen civil cloud condensation contains crater dangerous drastically east emerald flame fog foggy fumigate gas hiking ijen indonesia java kawa kawah lake landscape largest miner mordant mount mountain ores out rock scenery sky smoke spewing steel stone sulfer sulfur sulpher sulphur summit the travel trekking view vistas volcanic volcano water workers world yellow