RedactedNarrative: Subject was leaving Middle Point after at 1945 hours.  At the time the wind had picked up out of the south at approximately 40-45MPH.  While he was cruising back to Boulder Harbor, he hit an island that he did not see.  The operator stated he was traveling approximately 40MPH at the time of the accident.  His vessel ended up being grounded on the island until his family found him later that night.  No one was injured during the incident.