Group of 6 with 4 family members from out of state, and ages ranging 17 to 60. Shoshone had big waves and was enjoyably intense at 3900 cfs. Our guide, Taylor, was really good natured and a nimble boat handler who made sure we had a safe passage through the big rapids in the Shoshone section and kept the fun going by guiding our boat deftly through the more challenging routes and bigger waves of the generally more calm section from Grizzly Creek to Glenwood. She also did a great job of making sure guests were safe and comfortable, and generously shared the local geology and history with us in an engaging manner. In all it was a very professionally managed experience and everyone had a lot of fun. I have rafted the New, Chattooga, Nantahala, Arkansas, Colorado and a few other rivers over the years. Each river has its own character, but Defiance Rafting provides a clean and professional experience on the Colorado River that values safety and fun. Highly recommended.