The Kawah Ijen volcano in East Indonesia produces molten sulphur from vents in its sides, which appear bright red during the day but glow blue by night.
tags:
from: https://lulu-uu.tumblr.com/post/87980974821
recommended: lulu-uu tumblr, StretchedToBursting #othertunnel StretchingIt otkdsk Strippersonthejob