Ijen mountain is an active volcano located on the border between Banyuwangi and Bondowoso , East Java , Indonesia . This mountain has an altitude of 2,443 m and has several times erupted . The last eruption occurred in 1999. One of the most famous natural phenomenon of Mount Ijen crater is located at the peak. To climb this mountain to be departing from Banyuwangi or from Bondowoso .
