We booked with Maverick tours off the internet. I liked them because you can have a conversation with christine via a link from maverick and she can answer all your questions. Their overall space capacity is the largest and very airly, so if you do not like enclosed spaces then this is for you. Very professional. They picked us up from the flamingo hotel in a maverick coach and took us a few blocks to their depot. We read a safety card, went to the loo, and then got weighed for proper spacing.
We were allocated a pilot as there were several, he showed us all around the helicopter and explained what we were going to see. He showed us everything up in the air and was very informative.
We landed in the canyon on our own, had the champagne breakfast for around half an hour/40mins, taking pictures of everything and the nice pilot (a girls gotta have a pic of a guy in uniform

), we flew down the Colorado river, lead mead, hoover dam etc, we even flew over the sky walk which i am so pleased we didnt do, as the helicopter did it more justice i thought.
After the breakfast we re fueled in the canyon which was different lol, and was able to get out to take some more pictures for 15 minutes. This is where we saw giant cactus in the canyon, weird !
We flew to another destination as we were combining our tour with the rafting down the colarado river, so we were dropped off, and my other passengers went back to the Maverick office for descent.
We went into an other office to get a briefing on rafting then drove 5 mins to the hoover dam for our river rafting experience. It was absolutely fun, and very very long, we had lunch on there as well and did several stops seeing sheep of all things and horses. The guy that took us knew everything and we found the hottest spring water that would burn your feet and did. We were on the raft on and off for 4 hours at least, maybe more going down the river, we mey kayaks, jet skis all sorts. People live down there (campers).
When we had finished we went to a shop which was a lot cheaper than vegas to wait for our coach to take us back to the hotel. The day started at 5AM and we got off the raft at 3.30pm.
We felt till refreshed as they give you loads of free water all day, nothing was too much trouble all for £400. A total of 10.5 hours. Fantastic tour group to go with and not a rip off.