your legs as broomsticks and your fins as the bristles of the broom. You sweep up and down from the hip, keeping your knees almost straight and your toes pointed. When kicking in fins, your kick must be slow, deliberate, and wide. If you bend your knees too much and pull your upper legs up towards your stomach, kicking as if you are pedaling a bicycle, your fins will slip back and forth in the water and produce very little thrust. If you kick too fast, you will tire quickly and your up and down strokes will be small and will not give you much propulsion. On the surface, modify your kick so that you keep your fins in the water. Shorten the up stroke so that your fin does not come out of the water. You can also swim very efficiently on your back or your side while using the flutter kick on the surface. Swimming on your back (figure 3-9) or side (figure 3-10) keeps your fins in the water and is a good change of pace from swimming face down. Periodically check in the direction of travel, as you cannot see ahead while swimming on your back. When you are kicking on the surface, make sure you have just enough air in your BC to make you buoyant or float. If you get tired, you can stop kicking and rest. As long as you are buoyant, you can rest without effort for as long as necessary. Chapter 3- Diving Skills Diving Skills 51 FIGURE 3-7. THE SNORKEL SHOULD BE POSITIONED COMFORTABLY WHEN THE MOUTHPIECE IS IN YOUR MOUTH. FIGURE 3-8. YOUR KICK SHOULD BE SLOW AND WIDE AND USE THE MUSCLES OF YOUR UPPER LEGS AND LOWER TORSO. FIGURE 3-9. MANY DIVERS PREFER TO SWIM ON THEIR BACKS ON THE SURFACE. FIGURE 3-10. YOU CAN ALSO SWIM ON YOUR SIDE ON THE SURFACE.
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