As the name suggests, surf kayaking involves using kayaks to surf ocean waves. The techniques used in surf kayaking are generally very similar to those used in surfboarding. The kayaker paddles hard into the wave and then rides it for as long as possible. Some participants use specially designed kayaks that are an attempt to mimic surfboards _ they have a flat bottom and hard rails. Surf kayaking has gained popularity very quickly since the advent of sea kayaks and therefore the opportunities for kayakers to be out in the waves. .