Using Your Fins
The Flutter Kick
The flutter kick is the most popular method for swimming underwater. When using this method, keep your legs as straight as possible and use the strong muscles in your thighs to move your fins up and down.
Keep in mind that the efficiency of your fins has more influence on your movement than the force and speed of your kick. You'll move faster and exert yourself less if your kick is slow, wide, and steady. This allows the fin's flexibility to do most of the work for you.
A common mistake new divers make is kicking with their knees instead of the upper leg. Bending your knees results in a straight back and forth movement of the fin and provides little if any forward thrust.
Keep in mind that the efficiency of your fins has more influence on your movement than the force and speed of your kick. You'll move faster and exert yourself less if your kick is slow, wide, and steady. This allows the fin's flexibility to do most of the work for you.
A common mistake new divers make is kicking with their knees instead of the upper leg. Bending your knees results in a straight back and forth movement of the fin and provides little if any forward thrust.
