Here is a story on Sandbars one of the guys sent me when he read my SandBar Safety in

My wife and I decided to take a walk out on a sandbar in the Miss. River at Shelby Forest old river ramp one day. The sandbar went almost out to the main channel. We had walked out and the down the river a ways when we decided to head back.We walked straight back to the river bank from where we were when we heard the sound of water rushing by!I slowly approached what I heard and out of no where a gushing , fast moving stream of water was coming out from under the sand going about 20 feet and disapeared back under the sand. It was a very scary site to see.THERE IS MOVING WATER UNDER THOSE SANDBARS AND THEY CAN CAVE AT ANYTIME AND TAKE YOU WITH THEM!!I have not been back out on a sandbar since. We walked back out away from the flow of water and back pretty much the way we came before trying to walk up the river bank. That rushing water was right at the rivers bank, not way out near the edge of the sandbar!! SANDBARS ARE DANGEROUS FOR SURE!!!
https://www.youtube.com/watch?v=jeoGEPy3WOE