RedactedNarrative: Vessel 1 was travelling westbound just east of Boulder Islands at Lake Mead at a speed of approximately 35-40 mph according to the operator. The operator stated he was heading back to Lake Mead Marina and at approximately 2245 hours on 09/19/2020 he impacted a shallow underwater obstruction near Boulder Islands. 
  
  The operator struck the windshield with his head and the steering wheel with his chest. There was one other person on board who sustained pelvic and rib injuries in the collision. The passenger was treated by NPS Medics and transported to Sunrise Hospital via Community Ambulance. The operator self transported to the hospital. 
  
  The operator stated he could not see the underwater obstruction. Lake Mead's elevation has dropped significantly since the beginning of the summer. New obstructions are not uncommon.
  
  The operator/owner of the vessel stated the monetary damage done to his vessel is approximately $20,000. The owner stated he has full coverage insurance.