Antelope Canyon is called a slot canyon. To get to this section of it, not much longer than a city block, we boarded a jeep for a short ride from an unassuming toll booth at the side of the highway. We stopped in of a large crack in a wall of rock, and entered by foot. Most of the canyon was very dark, but where the occasional ray of sunlight shone through from overhead, lighting the smooth, curving walls, the effect was nothing short of stunning.
This was one of the few shots that turned out pretty well, considering I didn't have a tripod to avoid camera shake.