RedactedNarrative: On July 15, 2015 at or around 1400 hours, operator1 got underway in a 42 foot Catamaran Aqua Lodge from his slip at Pars Landing State Park Marina.  Due to the wind conditions and close proximity of moored vessels, subject was standing on the dock holding the bow line to help maneuver the boat.  A gust of wind caused subject to lose the bow line and the Aqua Lodge allided with a moored Harris pontoon boat.  Operator1 was able to dock his vessel in a vacant spot along the walkway until the wind conditions improved.  Operator1 stated that he did not notice any damage to the Harris.  The owner of the Harris noticed damage to his vessel and asked TWRA to investigate.  Not all damage to the Harris could be contributed to the allision.  Total damage to both vessels is $8563.00