Kayaking Tips & Techniques - How to Kayak with the River Flow
The term 'go with the flow' had to have originated from a river paddler. The sport of river kayaking requires a whole new mindset for beginner calm water paddlers. It is important to understand river flow to enjoy kayaking on a river. You need to realize that the river flow is constant and that you will need the ability to paddle with its flow. If you try to go against the river current you will be exhausted within minutes and ready to go home.
Working with the flow will allow you to move with the water while being playful, aggressive, or restful. It is important to understand how fast the river is moving and to understand that river flow is fastest in the deepest part of a river. The deepest part of a river is, however, not always in the middle. When a river turns the fastest flow in usually toward the outer-bank. This is due to the water force pushing the flow wider.
Going With the Flow
River kayaking should not require of lot of paddling. You can go as fast or as slow as you like by simply moving in or out of the primary flow. To go faster move to the deepest flow and use your paddle primarily to navigate (steer) your kayak. To move slower paddle to the slower moving water. You should not work up a sweat when paddling with the river flow.
It is always a good idea to take a class on river kayaking and boating safety before you begin adventures with your group. There are some additional paddling and rescue skills that you will need in order to stay safe and have an enjoyable time.
Another consideration is the planning of launch and landing locations. You should have transportation on both ends of your paddle or someone is in for a very long hike back to the vehicle.
International Grading System of River Difficulty and other Safety Issues
It is vital to always know your abilities and limitations when making paddling decisions. It is great to try new things but always have the knowledge and equipment to safely proceed. Most river kayaking requires research and planning. Paddling down a river can quickly change from relaxing to disastrous if you don;t know the area in which you are paddling.
Learn how to effectively use the International Grading System for rivers. This system rates all the rivers based on skill level from beginner to extreme whitewater professional. This system should be used only as a starting point because of seasonal condition changes. A good way to check current validity of river conditions is to contact local paddle tour operators or outfitters. They will be glad to give you an update on conditions for river kayaking to keep you safe.
A good starting point for river kayaking adventure would be to book a kayaking excursion with a local tour guide or outfitter. They will provide all the necessary equipment and supplies, as well as, give you pointers and advise based on your skill level. You can then learn how to plan a trip, what provisions to pack, what equipment you will need, and even how to read the river.

References:
http://www.paddledognation.com