The kayak shows the way you are going through life. It is also a symbol of freedom and your ability to take different choices. If the kayak is moving smoothly, you have no problems while living the life. If you meet the storms, or the water is not favorable to you, you are in emotional turbulence of your life as well. You feel like being unable to control your life, because of the circumstances.
Dream dictionary: Kayak dream meanings
If we surf the calm waters, it indicates that we are able to manage our business. If we are in troubled waters or lose control of the kayak, we should expect difficulties and problems at home and at work.