RedactedNarrative: Party group on 2-deck pontoon boat. The boat stopped by North Island, where people routinely swing from shore on rope into water. The victim had first jumped off the upper deck of the watercraft, feet first. The water depth at that point was 25-30 feet. The watercraft was not anchored and was drifting to the west, pushed by an easterly wind of 15-20 mph.
  
   The watercraft had drifted into shallow water (about 8 feet) as victim made a second descent off the boat, this time diving head first. The victim was able to come to the surface on her own, but complained of hitting her head on the bottom of the lake and having pain in her head, neck, shoulders and hands. The others on the watercraft got the victim on board, stabilized and called 911. They went to the public access to meet medical personnel. Life jackets were not used, and alcohol is thought to be a factor, although no BACs were obtained.