Continuous alternating kick in line with the body close to the water surface. The kick starts from your hips and using the whole of your leg, kicks through to your toes. Knees are kept underwater passing close to each other with feet and toes pointed. Do not drive the kick from the knee. Toes should just break the water surface creating some turbulant white water splash, producing speed and stability for the lower body. Do not kick too deep or too shallow, the depth of the kick action should be consistent and comfortable, alternating the feet to little more than the depth of your chest.