Here are some pictures of the Ijen Crater in East Java Indonesia. The workers make two treks, two miles up each time, then carry their load of sulfur down the steep path each day. Each worker carries about 70-90 kg per trip. They are paid 600 rupiah (6 cents) for each kg and about $8 per day after two trips. Many of them are also farmers so this is only their morning work. Walking through the noctuous gases of sulfuric acid twice up and twice down.