Ijen volcano complex is one that consists of Ijen crater and the high plains. This area is located in the three districts namely Situbondo, Bondowoso and Banyuwangi.
In this area there are volcanic sulfur mines, which indicates the mountain is still active and the activity. While at the Ijen crater area, visitors can see the miners were busy carrying piles of sulfur on their backs, down the steep and filled with harmful toxic gases.
Kawah Ijen crater lake is the center of the largest in the world, which can produce 36 million cubic meters of sulfur and hydrogen chloride with an area of approximately 5466 hectares .. Dangerous crater has an extraordinary beauty with turquoise-colored sulfur lakes with dramatic and elegant touch. Ijen lake has zero degrees of acidity and has a depth of 200 meters. Strong acidity can dissolve clothing and human fingers.
For those who like to be adventurous, to reach Mount Ijen can be accessed from two directions, namely, from the north and from the south. From the north, can travel through Situbondo towards Sempol (Bondowoso) through Wonosari and dilajutkan to Paltuding. Jaral Paltuding Situbondo to about 93 km and can ditemput about 2.5 hours.
From the south, can be passed from Banyuwangi into Slick within 15 Km. Of Slick towards Paltuding within 18 km and passed on using Jeep or other heavy car about 6 km before the Paltuding. This is because the roads are winding and uphill.