RedactedNarrative: Vessel 01 was at anchor in the Mayport Inlet adjacent to the South Jetty rocks. The operator attempted to simultaneously pull up the anchor and start the engine. The engine would not start and the Vessel drifted to the North, eventually impacting the North Jetty rocks with the Port side of the Vessel. The Operator and two occupants jumped from the vessel onto the North Jetty rocks and were rescued by the US Coast Guard.; occupant had a visible contusion/abrasion on the right side of his forehead and complained of back pain as a result of his impact with the rocks on the North Jetty. he refused treatment on scene.