RedactedNarrative: On August 3, 2014 at approximately 1100 hours a vessel (vessel 1) was coming into the area of Cocktail Cove on Lake Sindey Lanier.  The vessel was going slow and producing a large wake.  V3's  was in the middle of three vessels tied to each other and all were anchored.  V3 advised me that the wake of this vessel hit his vessel on the Port side causing the vessel to shift.  V3's back Port side handrail was broken in half and his starboard side pole was dented.  V3's foundation of the dented pole on the starboard side was also broke.  (vessel 2) had damage on his starboard rub rail.  This portion of his vessel was dented.  The owner of the vessel on the port side of V3's vessel declined to be included in this report.  The operator of the vessel 1 advised me that he was aware of the wake he caused.  vessel was more than 100 feet from V3's vessel and v2 vessel when this incident occurred.