The Volcano Adventure Guide: Excellent information and background for anyone wishing to visit active volcanoes safely and enjoyably. The book presents guidelines to visiting 42 different volcanoes around the world.
Kawah Ijen volcano, East Java - blue sulfur flames
Our expedition leader Andi visited Ijen crater during a period of elevated activity in May 2012, when lots of sulfur from the fumaroles was burning at night with blue and reddish flames, creating abstract photos.
The other photos are by our friends Jorge and Jessy who visited the volcano about 2 months later and give an impression of the volcano, known for its turquoise acid crater lake and the extensive sulfur mining.
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