This story appears in the August 2018 issue of National Geographic magazine. Indonesia has 127 active volcanoes. Only the U.S. (168) and Russia (144) have more. Essential packing list: We landed ...

An curved arrow pointing right. The To-Sua Ocean Trench is a swimming hole in a volcano's crater. People from all over the world travel to the Samoan island of Upolu to swim in the crystal clear ...

Mr. Curtis will start at once for Hawaii, where he will construct for the Museum a model of the great volcano, Kilauea. Professor T. A. Jaggar, of the Massachusetts Institute of Technology ...

So why do they do it? In this episode of Risky Business, we head to the Ijen volcano to find out. More from Risky Business In East Java, Indonesia, hundreds of miners face deadly smoke to mine ...