RedactedNarrative: Victim was riding in the bow seat of vessel 1.  Vessel 1 hit the wake of another vessel and victim 1 hit his head on the top of a snap.  The impact cut the victims head and started bleeding a lot.  Vessel 1 returned to Rock Canyon Marina where EMS and Rangers provided first aid.  Victim was taken by ambulance to Sierra Vista Hospital and treated for the laceration.