Semeru volcano — the tallest volcano on Java at 3,676 meters — erupted on the afternoon of November 19, 2025, with pyroclastic flows racing at high speed more than 8.5 kilometers down its slopes, as ...
From the smouldering flanks of Java to the isolated craters of Flores, Indonesia's volcanoes are some of the grandest in the world. Climbing their slopes before dawn offers unforgettable views of the ...