Walks and treks
Mount Rinjani
Labuan Lombok, Nusa Tenggara Barat
Indonesia's second-highest volcano, 3,726 m, on Lombok, with a crescent-shaped crater lake, Segara Anak, and hot springs.
Walks and treks in Indonesia
Walks and treks
Ijen Crater
Wongsorejo, Jawa Timur
A volcano in eastern Java with a turquoise acid lake in its crater, where sulphur miners carry heavy loads by hand.