RedactedNarrative: Operator stated he anchored his vessel at stern on west tip of Horn Island and took a ride on a inflatable dingy.   The wind picked up and when he returned to his vessel it washed up on beach.  When he pushed vessel away from beach it sank with in a minute.   Vessel had damage on bottom where rudder was attached to boat.  Operator/owner stated he had no insurance and vessel was total lost and valued at $30000.  Both motors went under.  Vessel was a total lost.  No injuries reported.   Also stated he had no insurance and vessel has not been recovered.