We bought this vacation activity through Groupon for 6 of us. We chose to do climbing in Boulder, CO. We met our guides Nate and David along the mountain side - we literally pulled up alongside of the road and got our gear on. Our kids 11, 9, 8 and 5 were excited. I was a little worried when we started to climb the steep mountain side. One wrong move and we could have had a disaster. We made it to our destination and Nate and David prepared the ropes. Within a few minutes, we were climbing! This is real climbing - not some small rock section. We had to hike up the boulders to our location. Our kids enjoyed it and it was a highlight of our trip. Our guides were awesome and very patient since there were 6 of us and the climbing is4 hours. The guides started us off on an easy climb and moved the ropes as we progressed. As a mother, it was difficult to see my kids so high up above the ground. It took sometime to trust the guides, the ropes,and take in the experience. We did have to climb down the mountain the same way we got up. A little intimidating but worth the experience. Don't forget to tip the guides! They deserve it.