Just returned from a 5-day, 4 night rafting trip with Sheri Griffith Expeditions. It was a fantastic experience. Traveled with my husband and brother-in-law who had never camped before in his life. We all had a great time. Very well organized, professional and fun people from the woman who answered all my questions on the phone to the guides. The Green River is best for people who want a wilderness river experience with fun, but not scary, rapids. I've been on river trips with several outfitters and Sheri Griffith is the best--personable guides, attention to details (including better hygiene ie washing stations), food and equipment. Will definitely plan another trip.