The Boat Docking 2.0  app runs on IOS, Android, Windows and MacOS and is perfect if you want all the maneuvers explained. Techniques and maneuvers are explained step by step with animations. A simulator also ensures that you can try out the maneuvers yourself under different conditions.

The Virtual Skipper Trainer is a pure harbor maneuver simulator that leaves nothing to be desired. However, it only runs on Windows or MacOS. Different boats can be selected here, ship parameters can be set and the physics engine has been refined.

Here is the overview: