RedactedNarrative: On July 4, 2017 Sgt. and I were patrolling Lake Sidney Lanier near Aqualand Marina.  At approximately 1630 hours we received a call in reference to a vessel that had run aground near old federal campground.  I responded to the incident location and observed an Erickson sailboat that had run aground on an island near Old Federal campground.  All occupants were uninjured.  The operator advised me that a severe thunderstorm had blown them onto the island.  He said he tried to get the sails down but it was too late.  The wind blew him onto the island.  Hall County fire and rescue pulled the sailboat off the island.  The vessel's keel was broken off and there was moderate damage to the vessel's bottom however the sailboat was not taking on water.  I towed vessel back to his slip at Aqualand Marina.  ***END OF REPORT***