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Use a small amount of sandboard wax on the bottom of the board. Rub the wax across the board from the back to the top and a small amount of the edges of the board. Take a handful of dry sand and rub it over the wax to help smooth it out. Apply sand to the board until it no longer sticks on the wax.  Slide the board back and forth in the sand, bottom down, so the board glides easily in the sand. Do not use wet sand on the board, as this can cause your board to stick to the sand as you ride. Make sure you are facing in the direction you are heading down the dune. Keep your arms and legs tucked into the center of the board. You will need to use a sandboard with no bindings to be able to lie down on your belly comfortably. Sit down and strap your feet into the bindings. Make sure your dominant foot is in front of the board, pointing in the direction you are heading down the dune. You should be able to rock back on your heels when you are strapped into the bindings. Look for a dune with dry sand that has a 4 to 5 m (13 to 16 ft) slope. Make sure there are no shrubs, sticks, shells, or obstructions around the dune or at the bottom of the dune. If you are standing on the board, keep your weight centered and your knees slightly bent. Shift your weight forward and keep your hips and shoulders stacked on top of each other. Turn your head in the direction you are heading and keep your arms relaxed at your sides. If you are lying on your belly, keep your body in the center of the board, with your legs tucked in and your chin up. If you are standing, tip your weight slightly forward and slide the board until it moves down the dune. If you are lying on your belly, use your hands to push yourself off the dune. If you are standing, allow the board to pick up speed as you ride down the dune, keeping your back leg strong and your weight in the center of the board. If you are lying on your belly, keep your arms and legs tucked in and your chin up as you slide down the dune. Avoid leaning forward or shifting your weight too far forward as you ride.  Stretch your hands out to help you balance as you ride. You should slow down as you reach the bottom of the dune and come to a gradual stop. There are usually no lifts to carry you back up to the dunes so you will have to run back up the dune on your own. Do another run on the same hill to get the hang of sandboarding. Then, challenge yourself to do a bigger dune or a dune with a bigger slope. You may need to wax your board again between runs to keep it smooth and help it to slide on the sand.

Summary:
Wax the bottom of the sandboard. Lie down on your belly for a less strenuous run. Stand with your feet in the bindings for a more challenging run. Start on a small dune with a flat starting point. Place your board downhill. Push off the dune to gain speed. Keep your weight centered as you ride down the dune. Run back up the dune with your board to do a second run.