RedactedNarrative: Vessel 1 and vessel 2 were operating on plane in a PWC tour group in a north easterly direction inside a pass right before a bridge. Vessel 1 came down and became stationary before the bridge. Vessel 2 did not stop and struck vessel 1's stern at 15-20 knots causing the bow of vessel 2 to ride up and strike the victim (occupant of vessel 1) in her lower back. Vessel 2 then rolled off vessel 1 causing both operator and occupant of vessel 2 to become ejected into the water. Victim was admitted to Health Park Hospital with a bruised lower back.