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The greatest acidic lake on earth: Ijen crater lake
Ijen Plateau is Indonesia’s most famous crater and lies in East Java, 2,600 meters tall, topped with a caldera with the world’s largest lake of highly acid (pH<0.5) and mineralized volcanic water. The lake has an average depth of 176 meters at a height of 2,368 m. Perhaps Ijen crater lake is the most amazing Indonesian lake.

The Shulphur miner in Ijen
Manual work in the sulphur factory for Rp. 110,000 per day. Although work in the factory is heavy as well, people prefer to produce sulphur in the factory instead of carrying it out of the volcano. 'I am closer to my family', is their explanation.

Coffee coffee plantation arabica coffee harvest
Several species of shrub of the genus Coffea produce the berries from which coffee is extracted. The two main species cultivated commercially are Coffea canephora - better known as 'robusta' - and Coffea arabica. Both are cultivated at the Ijen Plateau.

Access to Mount Ijen 
Public transport to the Ijen Plateau is available, but not as regular as in cities and not that often. You can reach the plateau from 2 directions, either via Bondowoso or via Banyuwangi. Traveling to the Ijen Plateau is fairly easy if time is your friend. If you are short in time, you might consider an organized tour.

All about Mount Ijen - Banyuwangi

  • The entrance fee  And the health certificate
     the weekdays 100.000 IDR (6 USD)  and at the weekend.150.000 IDR (10 USD)
    Officially you can start your climbing at 02.00 and Ijen will closed at 14.00 
    During the raining season Ijen could be open at 04.00 depend on The weather.

    Read more: news 1

  • PAY ATTENTION VISITOR !!!  IJEN IS CLOSED !!!  3-5 May 2024
    Due to conservation reason, Ijen is officially closed every first Friday of the month. 
    For the year 2024 The closure days are 5 Jan, 2 Feb, 1 Mar, 5 Apr, 3 May, 7 Jun, 5 Jul, 2 Aug, 6 Sep, 4 Oct, 1 Nov and  6 Dec.

    Read more: Latest News

Extract sulfur manually by breaking it loose from the surrounding rock, then carrying the sulfur up from the mines in baskets. These miners often work in challenging conditions, facing intense heat, hazardous gases, and physically demanding labor.