Also seeing the natural blue fire in nature was an amazing experience ... which is comprised of Mount Ijen, the active volcano with its turquoise crater lake called Kawah Ijen, the most acidic ...

While it appears as if the volcano is spewing blue lava ... this balance remains a challenge. Kawah Ijen is a land of ...

One day, however, these men may climb Kawah Ijen to discover not brimstone but fire, when this still-active volcano decides to erupt. by John F. Ross ...