I loved this trip - our guide, Pete, was super! This was an easy kayak up the river, and a very easy hike. It was a little more difficult kayaking back against a headwind -- but still not bad! If I went back, I would go on my own, but I'm glad it was guided for my first trip; I would have gotten lost without him!
If you book with them, just make sure what time and where they are picking you up -- we had a lengthy wait because of a third party making our reservations, but they were very comforting by telephone.