RedactedNarrative: Watercraft was pulling two tubes with a child in each. There were also four passengers in addition to the operator on board the boat. The Operator was turning to the left and passed out due to a medical issue. The watercraft struck a dock and then impacted the shoreline. The two on the tubes jumped off before the impact with the dock. A passenger who was standing in the aft seating area of the boat flew forward during the impact with shore and received a bump on his head, but was cleared by ambulance personnel. There were no other injuries and life jackets were being worn by all on board. Alcohol was not a factor. There was some damage to the boat and the dock.