Tanjung Puting National Park has some ecosystems such as dry tropical forestland, lowland, freshwater, swamp, and coastal forests. The lowland forest plants, such as Jelutung, Ramin, Meranti, Kruing, and Rattan dominate at Tanjung Puting. Endangered species should be protected inhabit Tanjung Puting National Park. They are Pongo, probosci's monkey, leaf monkey, Honey Bear, Malayan mouse deer, leopard, cat, and many more.
Ijen Crater locates in the middle of the nature reserve area between Bondowoso and Banyuwangi regencies, East Java. Ijen crater and the lake are inexperienced at an altitude of 2.368 meters high from sea level. It is a walled volcanic crater with a height of 300-500 meters. Near the crater is a lake with zero degrees of acidity and 200 meters deep. It is Acid sturdy enough to dissolve covering human fingers.
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