for info....
Kayaking is distinguished from canoeing by the sitting position of the paddler and the number of blades on the paddle.
A kayak is defined by the International Canoe Federation (the world sanctioning body) as a boat where the paddler faces forward, legs in front, using a double-bladed paddle. Most kayaks have closed decks, although "sit-on-top" kayaks are growing in popularity, as are inflatable kayaks which come without a deck.
Other than by the minimum competition specifications (typically length and width (beam) and seating arrangement it is difficult to differentiate most competition canoes from the equivalent competition kayaks. The most common difference is that competition kayaks are always seated and paddled with a double-bladed paddle, and competition canoes are generally kneeled and paddled with a single-bladed paddle.
CANOE
Tim Baillie & Etienne Stott - Men's Canoe double
KAYAK
Huw Swetnam - Men's Kayak single