Narrow path through Upper Antelope Canyon, Navajo Tribal Park, Arizona2

Smooth walls and many hues, Upper Antelope Canyon, Navajo Tribal Park, Arizona

Light changes colour, Upper Antelope Canyon, Navajo Tribal Park, Arizona

Sandy floors and steep sides, Upper Antelope Canyon, Navajo Tribal Park, Arizona

Brilliant light from above, Upper Antelope Canyon, Navajo Tribal Park, Arizona

Deeper in the canyon, Upper Antelope Canyon, Navajo Tribal Park, Arizona

Like folds of chocolate, Upper Antelope Canyon, Navajo Tribal Park, Arizona

Narrow path through Upper Antelope Canyon, Navajo Tribal Park, Arizona

Light entering Upper Antelope Canyon, Navajo Tribal Park, Arizona

Eroded forms in Upper Antelope Canyon, Navajo Tribal Park, Arizona

Tourists at the entrance to Upper Antelope Canyon, Navajo Tribal Park, Arizona