The world's largest acidic volcanic crater lake, Ijen Crater. Kawah Ijen (Ijen Crater) is a nature reserve Ijen Park is located between Banyuwangi and Bondowoso District, East Java, Indonesia. This crater exactly located at the top of Mount Ijen which is one of a series of volcanoes in East Java such as Raung, Bromo, Semeru and Merapi.
Multi-colored lake Kelimutu volcano. Indonesia - on the island of Flores there is a miracle of nature. Here, on the top of the volcano Kelimutu crater lakes are painted in 3 different colors. Although all three lakes are located on the same top of the volcano, each of them has its own color, which varies from time to time, getting red, brown, turquoise, green, blue.