Ijen Crater, Kawah Ijen

The Ijen volcano complex is a group of stratovolcanoes, in East Java, Indonesia. It is inside a larger caldera Ijen, which is about 20 kilometers wide. The Gunung Merapi stratovolcano (not to be confused with Central Java's Gunung Merapi) is the highest point of that complex.

West of Gunung Merapi is the Ijen volcano, which has a one-kilometer-wide turquoise-colored acid crater lake. The lake is the site of a labor-intensive sulfur mining operation, in which sulfur-laden baskets are carried by hand from the crater floor. Many other post-caldera cones and craters are located within the caldera or along its rim.

Ijen Crater or Kawah Ijen is another volcanic tourism attraction in Indonesia. Ijen Crater (Kawah Ijen) is a famous tourism object, which has been known by the domestic and foreign tourists because of the beautiful and charming nature. It is 5,466 hectares, 2,386 meters high from the depth of the sea, with a 92 hectares tourism forest. Its temperature is between 2 to 8 degree centigrade and the crater area lies at 2.386 meters above sea level (mdpl).

There are many beautiful species of plants that can be found there, such as; the edelweiss flower and the Casuarina Junghu (cemara gunung), etc. Various animals can also be seen in the area like jungle fowl (ayam hutan) and porcupine (landak).

The Ijen Crater lies about 68km from the town center. There are some of facilities here such as: a campground, a shelter and Tourist Information Center (TIC) etc.

The best time to enjoy the crater scenery is at morning, when the yellow sunlight glows the yellow water and shines the surrounding mountain like mount Merapi, the sister of Mount Ijen. Morning haze is creating a tranquility that we don’t get at the metropolitan towns. At 2 pm, the crater is closed for the reason that the thick smoke from the crater that is poisonous.