RedactedNarrative: On 07/19/2015 at approximately 1430 hours, V1 was towing V2 traveling West towards Gulf of Mexico in the Withlacoochee River. V1 was traveling West in the River when V2 in tow veered towards a nearby docked sailboat V3. The operator of V1 lost control of V2 and it struck docked V3. The port side of V2 struck the port side of V3 causing fiberglass damage to V3 and property damage to the dock. Owner of V3 made contact with operator of V1 to exchange information.