Here is a great drawing of a rivers anatomy.
Understanding the names and the different parts of a river can help you learn to read them and to know what others may be talking about. When needing to navigate rivers this is an essential tool to have.
![River anatomy](https://www.internationalrafting.com/wp-content/uploads/2013/08/River-anatomy.gif)
Next you will need to know what happens at each of those features and how you should deal with them so as to navigate them safely … or where its safe to play and explore!