I ndonesia has one mountain out of 2 in the world which shows blue fire activity in its crater at dawn. Blue fire activity in this world can only be seen in 2 places in the world, namely in the crater of Mount Ijen in Indonesia and another in Iceland. Its appearance is sometimes big, small, or even invisible. The local weather greatly influenced its appearance. Ijen Crater is located on Mount Ijen which is located on the border of Bondowoso Regency and Banyuwangi Regency, East Java Province. Mount Ijen has a height of 2,443 meters and a slope of 40 degrees. Ijen Crater is an acidic crater lake that sits at the top of Mount Ijen with a lake depth of 200 meters. Ijen Crater is in the area of Ijen Tourism Park, Bondowoso Regency and Banyuwangi Regency, East Java. Every morning around 02.00 to 04.00, around the crater you can find the phenomenon of blue fire or blue fire, which is unique in this place. Blue Fire itself is the reaction of natural gas when it meets oxygen at a certai...