This one is not for the faint hearted. After climbing a steep and slippery trail for a hour, one has to bear the pungent smoke of sulphur dioxide in the air. After all, this is the world’s most acidic lake and is full of sulphuric acid. Apart from offering a great natural spectacle to the visitor, one can also see how the locals work in these inhuman conditions to make a living for themselves and their family.
This short trek in the mountains of East Java in Indonesia offers a view that is matched by a very few places on the planet. Tough terrain, but unbelievable views especially on a bright sunny morning. This is one of my top volcano treks in Indonesia. Gunung Merapi would be a close second. I absolutely love interacting with the sulphur miners here. Are you planning this trek on your next trip to Indonesia?