The Ijen volcano complex is a group of stratovolcanoes in the Bondowoso Regency of East Java, Indonesia. It is inside a larger caldera Ijen, which is about 20 kilometers wide. The Gunung Merapi stratovolcano is the highest point of that complex. The name “Gunung Merapi” means “mountain of fire” in the Indonesian language (api being … Continue reading Blue Lava “Ijen volcano”