I went on the afternoon of Nov-9, very special experience! While I was in the river and holding on the side rope, waiting to be dragged onto the raft, the boat hit a huge rock and stuck there, causing a strong current which pulled me down, head below water, unable to pull myself out. Choked for a couple secs and realized no one could pull me out, I released the rope, went with the current, passed by the raft above me, and finally floated out of the water, coughing like hell. In less than one sec, the safe guy in black kayak came to me, helped me calm down and get back to the raft. He’s really amazing and professional! Unfortunately I didn’t get his name. I talked with him afterwards that he did so well, he deserved a bonus. (Plz, Challenge Rafting, if you see this review, that safety guy really did an awesome job!) The small accident was a plus! Once in a life time experience ;) I would definitely join the rafting again!