Two friends and I took a road trip on Route 66 from TX to CA and we decided to take a detour and do Antelope Canyon through this tour company, Viator/Wannar. It was worth every dollar. Our tour guide, Andrea, was very knowledgeable, upbeat, funny, and took great photos! On this website it says to get there 1.5 hours before your chosen tour time which we thought was excessive. When we got there, they said 30 mins prior would have been fine. So I'm not sure if they're aware that the website says to get there 1.5 hrs early. Nevertheless, I would get there an hour prior to the start of your tour to give yourself plenty of time to find the place and exchange your voucher for a ticket. The canyons are awe-inspiring and really showcase the beauty of nature. Of course, don't forget to check out Horseshoe Bend while you're in town as well!