The sulfur mine near the Kawah Ijen volcano

A miner seen compulated the sulfur stalactites while works at Ijen volcano crater in East Java, Indonesia. Photo taken on October 21, 2016. Based on d...

The combustion sulfur gas seen while contacted with the oxygen being glows the blue lights of flame at Ijen volcano crater in East Java, Indonesia. Ph...

The combustion sulfur gas seen while contacted with the oxygen being glows the blue lights of flame at Ijen volcano crater in East Java, Indonesia. Ph...

Sulfur piles seen inside the miners traditional basket at the crater of Ijen volcano in East Java, Indonesia. Photo taken on October 21, 2016. Based o...

A miner, Budiono (63) is seen showing his shoulder, which suffered skin and bone injuries from carrying a heavy load of sulfur stalactites in the crat...

A miner seen compulated the sulfur stalactites while works at Ijen volcano crater in East Java, Indonesia. Photo taken on October 21, 2016. Based on d...

A miner, Arifin (52) seen during lunch at the crater of the Ijen volcano in East Java, Indonesia. Photo taken on October 21, 2016. Based on data from...

A miner seen carrying piles of sulfur walks at small track of Ijen volcano crater in East Java, Indonesia. Photo taken on October 21, 2016. Based on d...

Sulfur stalactites seen frozen after dripping from the pipes as the liquid sulfur at Ijen volcano crater in East Java, Indonesia. Photo taken on Octob...

A miner seen compulated the sulfur stalactites while works at Ijen volcano crater in East Java, Indonesia. Photo taken on October 21, 2016. Based on d...

Sulfur mining pipe is seen draining molten sulfur in the crater of the Ijen volcano in East Java, Indonesia. Photo taken on October 21, 2016. Based on...

A miner seen compulated the sulfur stalactites while works at Ijen volcano crater in East Java, Indonesia. Photo taken on October 21, 2016. Based on d...

A miner seen surrounded by clouds during compulated the sulfur stalactites while working in the crater of the Ijen volcano in East Java, Indonesia. Ph...

A miner seen surrounded by clouds during compulated the sulfur stalactites while working in the crater of the Ijen volcano in East Java, Indonesia. Ph...

A miner seen carrying piles of sulfur walks at small track of Ijen volcano crater in East Java, Indonesia. Photo taken on October 21, 2016. Based on d...

A miner seen carrying piles of sulfur walks at small track of Ijen volcano crater in East Java, Indonesia. Photo taken on October 21, 2016. Based on d...

A miner seen surrounded by clouds during compulated the sulfur stalactites while working in the crater of the Ijen volcano in East Java, Indonesia. Ph...

The combustion sulfur gas seen while contacted with the oxygen being glows the blue lights of flame at Ijen volcano crater in East Java, Indonesia. Ph...

The complex of Ijen (R) and Raung (L) volcanoes are seen from the waters of the Bali Strait as part of the 'Ring Of Fire' in Indonesia. Photo taken on...

Two sulfur miner seen during works beside the combustion sulfur gas which contacted with the oxygen being glows as the blue lights of flame at Ijen vo...

The combustion sulfur gas seen while contacted with the oxygen being glows the blue lights of flame at Ijen volcano crater in East Java, Indonesia. Ph...

The combustion sulfur gas seen while contacted with the oxygen being glows the blue lights of flame at Ijen volcano crater in East Java, Indonesia. Ph...

Sulfur stalactites seen frozen after dripping from the pipes as the liquid sulfur at Ijen volcano crater in East Java, Indonesia. Photo taken on Octob...

The hydrochloric acid lake of Ijen volcano looks stunning in East Java, Indonesia. Photo taken on October 21, 2016. Based on data from the US Geologic...

The crater of Ijen volcano seen in East Java, Indonesia. Photo taken on October 21, 2016. Based on data from the US Geological Survey, about 1,350 pot...

The combustion sulfur gas seen while contacted with the oxygen being glows the blue lights of flame at Ijen volcano crater in East Java, Indonesia. Ph...

The hydrochloric acid lake of Ijen volcano looks stunning in East Java, Indonesia. Photo taken on October 21, 2016. Based on data from the US Geologic...

The hydrochloric acid lake of Ijen volcano looks stunning in East Java, Indonesia. Photo taken on October 21, 2016. Based on data from the US Geologic...