Most of the tour was fantastic. The busses that carried us, and Mike, our tour guide could not have been bettered. It was certainly one of the highlights of our Vegas trip and are delighted we took it however, it really should have been made clear before booking just how strenuous the descent and climb to and from the Colorado River to the helicopter landing site would be. It was a rought steep path with nothing to hold on to and doubtless injury via rock or water if one fell. Even the jetty our over the river did not have a barrier at the sides Any one with leg or heart problems reallly needed to be advised of this. The roughness of the trerrain should also have been highlighted with reccomendations as to suitable foot wear.. It was incredibly dangerous to make the descent wearing flip-flops as some people did. The other disappointment was the time spent waiting. Because of the distance from Vegas to the G.C, we only had 3.34 hours there out of a 12 hour tour. We spent just over an hour upon arrival waiting for our helicopter ride. When it landed and we struggled down to the jetty, there was a back up of about 25 people and another delay of more than 20. Then when, exhausted by the heat and theclimb back to the helicopter, there was another 15 minute delay. By the time we got to the bus stop to go and get lunch and do the Skywalk, there was only 50 minutes left before we had to leave. As it was 9 hours since we had eaten, we had a very quick lunch and had to return to base, not having time to experience the Sky Walk, one of the main attractions of