RedactedNarrative: The watercraft was cruising at a slow speed, under 10 MPH. The operator saw a big wave coming and told his passengers to hold on. One passenger decided to put her hands in the air like a roller coaster. The watercraft hit the wave and the passenger hit her head on the wake board tower. The watercraft headed to the dock where the paramedics were waiting. She was taken by ambulance to the hospital. Life jackets were not being worn. Alcohol was not a factor.