RedactedNarrative: As operator approached breakwater to his home port he turned off autopilot and took the wheel.  Based on what he was seeing on his plotter he thought he was about a half mile out at the time of the accident.  The plotter was showing a location further out than the actual location.  The tide was exceptionally high and he didn't pick it up on his radar.  He was very familiar with this area and had navigated this inlet hundreds of times with little to no visibility in both fog and dark.  He struck the submerged east jetty on the port side of the vessel.  He lost the port motor and kept the starboard motor running.  He backed off the jetty and tried to run to the beach.  It couldn't be done.  They put their life jackets on and called mayday to CG.  He launched the life raft and ten minutes later CG came and picked them up.  Vessel total loss no injuries.