RedactedNarrative: Vessel A and Vessel B were travelling together.  Vessel A was approximately 15 to 20 feet in front of Vessel B.  Vessel A turned hard to the left, Vessel B was unable to change direction and impacted Vessel A in the rear of the PWC and rear passenger of Vessel A, impacting her in the side and ejecting her from the PWC.  The passenger was injured causing her to be admitted to the hospital, then life flighted to Denver for further observation.