RedactedNarrative: I heard owner hailing the Coast Guard Over channel 16 on the VHF. I heard the lat/long that owner gave, I heard there were six people aboard the vessel, that they had struck a rock ledge, everyone had personal flotation devices on and that they might be taking on water.  
  
  I responded. Once on scene, I made contact with owner and found that they were not taking on water.  They had put out their anchor and within a matter of minutes, the tide had already taken them off the ledge and they were floating on anchor.  Operator A hit submerged ledge due to inattention.