RedactedNarrative: VESSEL WAS NORTHBOUND AND OPERATOR WAS ATTEMPTING TO TURN IT SOUTHBOUND FULL SAIL. DURING THE TURN, A GUST OF WIND CAUSED VESSSEL 1 TO CAPSIZE.  WHEN IT CAPSIZED, THE MAST BECAME STUCK IN THE MUD & SUBMERGED VEGETATION, CAUSING DAMAGE TO THE MAST WHEN VESSEL WAS BEING RECOVERED.