We visited the upper canyon on the 12.30 trip ( remember, if, like us, you came from Monument Valley, the clocks go back an hour during daylight saving time). We booked through Adventurous Antelope Canyon Photo Tours who are situated on the 98 just before the power station and we were very fortunate to have the owners' son in law as our tour guide. We also had a closed in, rather than "open to the elements and dust" vehicle.
Our guide was first class. He pointed out the best vantage points for photographs (assisting at times by taking awkward angles for us) and he and his wife, who was with a party in front of us gave us the history of the site.
This company do not do the lower canyon and, to be honest, the idea of scrambling up and down ladders is not particularly appealing to a couple in their 60's, so, for us this tour was perfect
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