for greater depth or straighten out for an underwater swim (Counsilman and Drinkwater 29).
             Another dive is the Feet First dive. Tread water over the spot where the dive is to be made. Raise the body out of the water with a strong kick and a downward push with the hands and arms. Then straighten legs, point toes, and raise the arms overhead. The weight of the upper body and the arms will force the entire body under the surface. When the downward motion stops,
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