The Ijen volcano complex is a group of composite volcanoes located on the border between Banyuwangi Regency and Bondowoso Regency of East Java, Indonesia. It is inside an eponymous larger caldera Ijen, which is about 20 kilometres wide. The Gunung Merapi stratovolcano is the highest point of that complex.
20 pictures of Ijen from Tom Mussak, Maksym Ivashchenko, van dc and other travelers
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With its forty or so active volcanoes, the island of Java in Indonesia alone has almost a third of the volcanoes that dominate the Indonesian archipelago.
Ijen, located at the eastern end of Java, is now one of the island's best known and most visited volcanoes, along with Mount Bromo.
Its acidic lake and impressive sulphur bearers attract its share of curious hikers every year. A successful trip to Indonesia cannot do without a volcano climb, and this region of Southeast Asia offers a wide range of treks, depending on the physical condition of each person.
Ijen is located in the southeast of the Kendeng caldera. This caldera, which was formed about 50,000 years ago, is the result of the explosive eruption that destroyed Old Ijen, the ancient volcano that peaked at 3500 metres.
With the first rays of the sun and the dawn, the turquoise waters of the lake light up gently before our eyes. But beware of those who want to take a dip, as this is the most acidic lake in the world.
To go back up to the ridge, you sometimes have to climb the somewhat steep wall of the crater, so vigilance is required.
Once up there, you can watch the sunrise and enjoy the exceptional panorama. On a clear day, before the morning mist has invaded the horizon, we can see the majestic Mount Raung, which rises to more than 3300 metres, towards the south-west. Behind us towards the east, we can see the highest point of the Kendeng caldera, Mount Merapi, not to be confused with its namesake located near the Buddhist temple of Borobudur. This is an opportunity to take some nice pictures before heading back down to the base camp.
The descent is not dangerous in itself, but be careful with your knees and joints, which are put to the test!
Climbing Kawah Ijen and descending into the soufriere at the edge of the acid lake is a unique experience. From the blue flame flows that snake through the night to the hard-working men, Kawah Ijen grips you and leaves you speechless...
To visit Ijen, you will need to make sure you take gas masks to protect yourself from inhaling the toxic gases escaping from the volcano.
These masks will normally be provided by the guides who accompany you.
Also, swimming is not allowed: remember that this is the most acidic lake in the world.
There is no accommodation around Ijen.
It is therefore advisable to stay in the town of Banyuwangi which is one of the closest to the volcano.
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20 km (12.6 miles) away from Ijen
Ketapang Regency is a regency in the south of the province of West Kalimantan, on the island of Borneo in Indonesia. Ketapang Regency occupies an area of 31,588 km², and at the census in 2010 it had 427,460 inhabitants following the splitting off of five districts in the north-west of the regency in 2007 to form the new North Kayong Regency; the 2020 census revealed a growth in population to 570,657 over the intervening decade.
23 km (14.0 miles) away from Ijen
Banyuwangi, previously known as Banjoewangi, is the administrative capital of Banyuwangi Regency at the far eastern end of the island of Java, Indonesia. It had a population of 106,000 at the 2010 Census and 117,558 at the 2020 Census. The town is also known as city of festival as many festivals are held throughout the year.
24 km (15.2 miles) away from Ijen
Banyuwangi Regency is a regency of East Java province in Indonesia. The regency is located at the easternmost end of Java Island. It serves as a port between Java and Bali. It is surrounded by mountains and forests to the west; by sea to the east and south. Banyuwangi is separated by the Strait of Bali from Bali. With an area of 5,782.4 km², this regency is the largest in Java.
30 km (18.9 miles) away from Ijen
Situbondo Regency is a regency of East Java province, Indonesia. It covers an area of 1,638.50 km², and had a population of 647,619 at the 2010 Census and 685,967 at the 2020 Census. It is located in east end of Java before Banyuwangi. The administrative centre is Situbondo, a small town within the regency. One of the famous tourist sites is Baluran National Park.