The trip was great, but the organization was disastrous. We had confirmed our trip as outlined by Viator, but when it came time to be picked up at 5:15 a.m. at our Casino in Las Vegas, we were refused admittance to the bus. Our names were not on the check sheet, nor were we booked on the Grand Canyon flight. We were upgraded and booked on a different tour, which included a helicopter flight, but this tour did not have enough time allotted between arrival and departure at the Grand Canyon to see all of the attractions, plus we missed out on lunch!