2 points per side
kayak must tip into water at least as far as half of deck submerging
Sculling can also be done face down, leaning forward and out to the side although the face will get wet in the process. Chest sculling earns 2 points per side. Each side is scored individually and most people have a dominant side, which will become more evident as you watch them progress down the list to the harder rolls.
Beginner