There are several methods to make the kayak go to a desired direction. Maybe the easiest one is to use a built in rudder that is controlled with foot pedals. But you should learn to survive also without such a luxury equipment.
On this section we will learn to use the paddle as a stern rudder. It is a quick and powerful way to keep or rapidly change the direction and is especially usable when wind, waves or water current tries to overtake control.
However, the downsides are that it slows you down and breaks your paddling rhythm. That is the reason why you should not consider the stern rudder your primary method for fine tuning direction.
To learn how stern rudder is done, you need to have the kayak moving. So for beginning, paddle forward until you gain a good speed.
After a normal forward stroke, let the paddle stay in water and continue the stroke behind you until the paddle is almost parallel to the kayak.
If you keep the upper edge of the blade tilted away from the kayak, the kayak will turn to the side where the paddle is. Keeping the blade in about vertical angle makes the kayak go straight and tilting the blade's upper edge towards the kayak, will make the kayak turn to the opposite side.
» While steering the kayak might be the primary purpose for using stern rudder, it is quite easily transformed for other purposes also.
» When the kayak is moving forward, put the blade in horizontal angle, and you can use the stern rudder for getting support for a while. This is useful especially if you need to look behind.
» And to use the paddle for slowing down, just keep the blade horizontal and push it down under the water.