Antelope Canyon in Arizona was a must see for our trip through south west USA as it is especially interesting for taking pictures. The difficult question was to choose between upper and lower antelope Canyon. Due to the accessibility, the availability of tours (the canyon can only be accessed by a Navajo organized tour as it is on a Indian reservation) we chose the lower part of the canyon.
Another importand point to consider was the time of day of the tour. If taking pictures is important this is the most important fact to consider. After massive online research to find out about different experiences we chose a tour at 10:30 with Lower Antelope Canyon Tours.
The opinions differ on whether the sun is better in the morning or in the afternoon. If you just want to visit the canyon and enjoy its beauty it simply doesnt matter. If you would like to take good pictures try to catch a sunny day and do not go when the sun is highest as you might miss the cool shadows and the spectacular light inside of the Slot canyon.