World's largest acid lake

#bucketlistreboot The Ijen volcano complex is a group of composite volcanoes located on the border between Banyuwangi and Bondowoso of East Java, Indonesia. West of Mount Merapi is the Ijen volcano, which has a one kilometers wide turquoise coloured acidic crater lake. The Ijen crater is actually a well known sulfur mining site. You will see many miners carrying heavy loads all the way up to the crater. The blue fire derives from the mining activity and ignited sulfuric gas, which emerges from cracks. Mount Ijen is most famous for its one of a kind blue fire and for being home to the world's largest acid lake. The area is home to many other volcanoes and hills, the hike starts in dark, but when you reach the top reward with the marvelous views.