I had to rescue a 12 year old girl that tipped her yak just above short creek last October. She was 200 yards in front of her group went she went over. It was a good thing they weren't generating but 1 unit. I had a jacket on as it was a little cool, she had a T-shirt on. It was a very windy day which made it feel much colder. She was shivering as we helped her back into her yak. I told her dad that she could develop hypothermia before the reached their take out at Cooper Creek. Those yaks are launched in heavy fog at the boat ramp at the dam and they go right out in the middle and start downstream. I have no idea why one hasn't been run over or drowned in the current but it will happen sooner or later. I hate yaks as most of the people in them have no boating experience ,never wear a pfd , are out after dark with no lights or early in the morning with no lights.