RedactedNarrative: On December 14, 2019 at approximately 1215hrs  operator was operating his vessel a 42' Marquis West in the St. Lucie River with one occupant onboard. While operating at approximately 20 knots Operator1 failed to notice that he had traveled outside of the channel to the North. The vessel ran aground onto a sandbar causing the occupant to fall from near the helm down the stairs and into the cabin. She received a laceration to her head and injured her shoulder and ankle. The operator of the vessel was uninjured. The vessel did not have any visible damage, but ran aground and most likely received damage to the props. 