RedactedNarrative: Operator of Vessel 1 was heading upstream in the Maumee River returning to Maple St boat ramp.  Vessel 1 stuck the east side or down stream side of the rock wall underneath the I 75 bridge on the starboard bow.  Passenger 6 was ejected from the vessel upon impact and landed on the rock wall sustaining minor injuries to his back and left elbow.  Vessel came to rest with the starboard side of the vessel out of the water on the rocks and the port side still in the water.