RedactedNarrative: The operator of vessel 1 was towing a skier in close proximity of other vessels near the middle of the lake. The operator checked on the skier and when he turned back around he noticed he was heading toward a blue pontoon boat that was drifting. V-1 attempted to turn full starboard but could not avoid a collision. The port side pontoon of vessel 1 struck the port side railing and deck of vessel 2 and glanced off the engine. No injuries were reported.