Blue Fire Crater: Rivers of Molten Sulphur Flowing Inside an Indonesian Volcano

[AP]

http://www.thisiscolossal.com/2015/09/burning-sulphur-rivers-reuben-wu/

[Dune]

Terrific. Nature is full of surprises. If someone would have done this in TG, we would have laughed (kind of).

[AP]

Indeed.