I recently returned from yet another trip to Lower Antelope Canyon outside of Page, Arizona. Lower Antelope is the more peaceful, more quite slot canyon compared to the overcrowded Upper Antelope Canyon where photographers literally push and shove for the best spots.
These two photos help show the difference the time of the year can make in such a place. Both were taken at about the same time of the morning on a clear day. With the summer sun more overhead the photo on the left was much more orange compared to the late fall photo on the right showing more purples.