The Black Canyon River float was a highlight of our Las Vegas trip. Transportation to and from our hotel to the Colorado River was easy and efficient. The time on the river was glorious, with many natural wonders to wow us. We saw bald eagles, golden eagles, peregrine falcon, blue heron, as well as several sightings of big horn sheep. Our guide was extremely knowledgeable and informative. There were 11 in our group, 8 of these in their 20's. This contingent would have preferred less talk and more quiet time on the raft to savor views. I understood where they were coming from but appreciated the education nonetheless. Thanks to all at Viator for a memorable river trip.