Ijen plateau or known as "Kawah Ijen" is highly recommended to mountain buffs and hikers. The Plateau was at one time a huge active crater, 134 sq km in area. At the rim itself you have a nice view on the lake. The walk up to the crater rim takes 60-90 minutes. It's pretty steep. The magnificent turquoise sulfur lake of Kawah Ijen lies at 2148 m above sea level and is surrounded by the volcanos sheer crater walls. The vent is a source of sulfur and collectors work here, making the trek up to the crater and down to the lake every day.
Ijen Crater located at the peak of Mount Ijen is a series of volcanoes such as Bromo, Semeru and Merapi in East Java. Photo by Andika Saputra/ www.indonesia.travel.
