One of the wonderful places I’ve visited in Indonesia is Ijen Crater, a volcanic lake formed by a still-active mountain in east Java. It’s about 9000 feet in elevation, and the hike up to the top is over a well-worn, gradual path. The view is spectacular. The intense aquamarine color of the lake is set against the deep blue sky and the brightly colored deposits of sulfur. After I took several shots from the rim of the crater, I climbed a rocky trail down to the edge of the lake for more remarkable views. Every few minutes, the wind would change direction and the sulfur dioxide smoke would engulf me and burn my throat. I held my breath for as long as possible with my t-shirt covering my face until the wind changed again. It was worth the discomfort, though, because this other-worldly place is fascinating and beautiful to photograph.