Device for learning and training the underwater dolphin kick and methods

A swim training device comprising:

• (a) a platform having a top side and a bottom side, and extending longitudinally from a leading edge to a trailing edge and extending laterally from a left edge to a right edge, and a chamber therein constructed to be filled with air, water, or a combination of air and water;
• and
• (b) a hands pocket located on the top side of the platform and including a hands entry opening facing toward the trailing edge of the platform, wherein:
• (i) the hands pocket is configured to receive a user's two hands through the hands entry opening so that the user's two hands are located in the hands pocket and arranged in a generally extended configuration;
• (ii) the hands pocket is configured to hold the user's two hands in place in the generally extended configuration against the top side of the platform;
• (iii) the hands pocket is configured to resist longitudinal and lateral movement of the user's two hands relative to the platform, and movement away from the platform, when the user's two hands are located within the hands pocket during use of the swim training device;
• (iv) the hands pocket being formed from a material separate from the platform and having a right edge and a left edge;
• and
• (v) the right edge and the left edge of the hands pocket are each attached to the top side of the platform such that the right edge of the hands pocket is spaced away from right edge of the platform and the left edge of the hands pocket is spaced away from the left edge of the platform.