RedactedNarrative: The operator stated that while driving back to the campground, his passenger lost his balance while trying to secure an American flag that was flying in the front half of the watercraft. The passenger fell into the water on the right side of the boat, at a speed of about 20 mph. The watercraft then ran over the passenger and the prop of the engine cut the left leg of the passenger multiple times between the knee and the ankle. The operator pulled the passenger from the water and continued to the campground to retrieve help. The passenger was treated for injuries and transported to the hospital. Life jackets were not being worn, and alcohol was not a factor.