Its a very rocky river with lots of large rocks in places.. He even got his legs/ feet pinned in between a raft on one side and a tree on the otherside up against his kayak. But didnt really feel any pain then.. He didnt feel the pain until we got back to the campsite and got out of bus and stepped down amd severe pain hit him in his heels and bottom of feet. His feet and ankles swelled and are still swollen .