See Kawah Ijen volcano

The world’s largest volcanic lake, with Batak villages on Samosir Island at its centre.

A three-day trek to a 3,726 m crater rim above a crescent lake with a new cone growing in it.

Witness rare desert wildflower blooms that occur after rainfall in locations like Chile's Atacama Desert or California's Death Valley

The "river of five colours", turned red by aquatic plants between June and November.

Ten million fruit bats darken the sky each November — the world’s largest mammal migration.

Africa's second-greatest antelope migration.

Island-hop volcanoes, rice terraces, and coral gardens of Indonesia

See sunrise over Mount Bromo, an active volcano in East Java, Indonesia