The Bromo Tengger National Park cover a massive area 800 square kiliometres in the center of East Java . this is the larges volcanic rises 3637 meter above sea level. Experience the remarkable Tengger caldera, Java’s largest, with its 10 km barren desert – like sea of sand , within the caldera rise the deeply fissured volcanic cones of Batok and Bromo, the latter is still active with a cavernous crater from which smoke blows skyward. Temperatures at the top of mount Bromo range about 5° to 18° celsius , br1to the south of the park is rolling upland plateau dissected by valleys and dotted with several small scenic lakes, extending to the foot of mount Semeru, and possibly the world which possesses a unique sand sea at the attitude ot about 200 meter above sea level. There are several mountains inside the caldera: Mount Watangan (2.661m),Mount Batok (2.470m), Mount Kuda (2.581m), and Mount Widadaren (2.650m).