Wadable areas of the Missouri?

Could anyone point me to any wadable areas of the Missouri near town? Ideally areas that aren't so sandy but I will take what I can get. No looking for anyone's fishing spot, I'm a teacher looking for areas to take students. (You may have seen my previous post https://www.reddit.com/r/bismarck/comments/1vkn6b8/comment/p35tp1r/?screen_view_count=4&ext-referrer=DIRECT )