RedactedNarrative: THE DRIVER WAS ATTEMPTING TO REVERSE SOUTH ALONG THE GULF SIDE OF SHELL KEY ISLAND.  AT THE TIME, THERE WERE APPROXIMATELY SIX(6) FOOT WAVES AND 25+ MPH WINDS FROM THE WEST.  THE DRIVER WAS UNABLE TO HANDLE THE SEA/WEATHER CONDITION.  THE WAVES PUSHED THE VESSEL ONTO SHORE AND BEGAN TO FILL THE VESSEL.