RedactedNarrative: Operator operated V1 too close to the shoreline and grounded V1, likely striking a portion of the sand bar that was immediately below the surface of the water. V1 stopped and the momentum ejected Operator.  Through the ejection, Operator struck his head and leg on V1, the water and/or ground, causing injury.
  
  Damage to V1 is consistent with striking something soft like sand.  The damage to V1 does not show that any hard items were struck.  Damage is estimated at $500.
   