We took their half-day Intermediate Class III/IV trip on Clear Creek and had a blast. We were all first time white water rafters - my wife and I and our two kids (11 and 14) - and the staff were excellent in getting us set up. They were very thorough with their safety instruction while still exuding a laid back atmosphere. Once on the water, our guide Zack was funny and gave us some great thrills. His "suicide spins" were great! Definitely use these folks if you are in this area!