Mount Semeru in East Java.

Roof-altitude 3676 masl Java is also a favorite mountain climber Indonesia. Mount with a crater at its peak, labeled Jonggring Saloko entered the area of ​​Bromo Tengger Semeru National Park. The park consists of mountains and valleys covering an area of ​​ 50273.3 hectares. There are several mountains in the Mount Tengger Caldera, among others, Mount Bromo (2.392m), Batok (2.470m), Kursi (2.581m), Watangan (2.662m) and Mount Widodaren (2.650m). other than that there are 4 lakes (ranu) in the region namely Ranu Pani, Regulo, Kumbolo, and Ranu Darungan.