RedactedNarrative: UNIT 1 DROPPED ITS ANCHOR WITH THE ANCHOR LINE TIED TO THE SIDE OF THE BOAT.  UNIT 1 CAPSIZED DUE TO THE STRONG CURRENT COMBINED WITH THE IMPROPER ANCHORING OF THE VESSEL.  THE THREE OCCUPANTS WERE EJECTED INTO THE WATER.  THE OCCUPANTS WERE WEARING PFD'S AND WERE RECUED ANOTHER BOAT IN THE AREA.