RedactedNarrative: According to a USCG MISLE report, a vessel became grounded, took on water, and sank.  The vessel originally had been on a course transiting northward near Charleston Harbor.  A bulk freight vessel was inboard to Charleston Harbor and attempted to hail the recreational vessel due to an anticipated crossing situation without success.  The recreational vessel came to a stop in the middle of the main shipping channel directly in the path of the commercial vessel, which prompted the latter to sound its horn with a danger signal.  The recreational vessel then resumed its northbound course and left the channel.  When it attempted to return to the harbor entrance, it became grounded on the northern side of the jetty, took on water, and sank.  The Coast Guard rescued the two people.  At the time of sinking, the vessel was anchored and was considered a total loss as some significant debris was recovered.